This glossary highlights regulatory, quality, safety, formulation, evidence, labeling, and commercial terminology used across the Life Sciences sector’s Consumer Health/OTC & Nutraceuticals Practice. It helps executives and practitioners interpret abbreviations encountered in self-care medicines, dietary supplements, retail channels, manufacturing, and market oversight.
0–9 A B C D E F G H I J L M N O P Q R S T U V W
| 0–9 | |
| 21 CFR | Title 21 of the Code of Federal Regulations: The principal body of U.S. federal rules governing foods and drugs. Particularly relevant provisions cover dietary-supplement manufacturing, drug manufacturing, labeling, and nonprescription drug requirements. |
| 5-HTP | 5-Hydroxytryptophan: An amino-acid derivative and serotonin precursor used in some mood and sleep supplements. Formulators must consider evidence quality, dosage, purity, contraindications, and potential interactions with serotonergic medicines. |
| A | |
| ACNU | Additional Condition for Nonprescription Use: A U.S. regulatory concept under which a condition beyond the consumer-facing label, such as a digital self-selection or behavioral step, may support safe use of a medicine without clinician supervision. |
| ADI | Acceptable Daily Intake: The estimated amount of a substance that can be consumed every day over a lifetime without appreciable health risk. It supports safety limits for additives, contaminants, and other ingested substances. |
| ADR | Adverse Drug Reaction: A harmful and unintended response associated with use of a medicinal product at normal doses. Monitoring these reactions is central to post-market safety and label maintenance for nonprescription medicines. |
| AE | Adverse Event: Any unfavorable medical occurrence following product use, whether or not the product caused it. Companies collect and assess these reports to meet safety obligations and identify emerging product risks. |
| AHP | American Herbal Pharmacopoeia: A nonprofit organization that develops botanical monographs and analytical standards addressing identity, purity, quality, and therapeutic information for herbal ingredients. |
| AHPA | American Herbal Products Association: A U.S. trade association for herbal and botanical products whose guidance, policies, and botanical resources are widely used in ingredient sourcing, labeling, and quality management. |
| AI | Adequate Intake: A nutrient intake benchmark established when evidence is insufficient to set a recommended dietary allowance. It informs nutrition policy, formulation decisions, and interpretation of consumer intake. |
| ALA | Alpha-Linolenic Acid: An essential plant-derived omega-3 fatty acid used in nutritional products. Product development must distinguish it from longer-chain marine omega-3 fatty acids, which have different metabolic and evidence profiles. |
| ALA | Alpha-Lipoic Acid: An antioxidant compound marketed in supplements for metabolic and neurological health applications. Its distinct meaning must be clear in specifications, labels, and technical communications. |
| AMDR | Acceptable Macronutrient Distribution Range: The recommended percentage range of energy intake supplied by protein, carbohydrate, or fat while supporting nutrient adequacy and reducing chronic-disease risk. |
| ANVISA | Agência Nacional de Vigilância Sanitária: Brazil’s national health regulatory agency, responsible for oversight of medicines, foods, dietary supplements, labeling, manufacturing, and health-related advertising within the Brazilian market. |
| AOAC | AOAC INTERNATIONAL: An independent standards organization that develops and validates analytical methods. Its methods are widely used to test nutrients, botanicals, contaminants, allergens, and microbiological attributes. |
| API | Active Pharmaceutical Ingredient: The component of a medicinal product responsible for its intended pharmacological effect. Its identity, strength, purity, sourcing, and stability are fundamental to nonprescription drug quality. |
| AQL | Acceptance Quality Limit: A statistical sampling threshold used to evaluate whether a production lot has an acceptable level of defects. It is commonly applied to packaging components, finished goods, and incoming materials. |
| ARfD | Acute Reference Dose: The estimated quantity of a substance that can be consumed within 24 hours without appreciable health risk. It is important when evaluating short-term exposure to contaminants or ingredient constituents. |
| B | |
| BCAA | Branched-Chain Amino Acid: One of three essential amino acids—leucine, isoleucine, or valine—frequently combined in sports-nutrition products. Formulation decisions consider ratios, dose substantiation, flavor, solubility, and labeling. |
| BCS | Biopharmaceutics Classification System: A framework that categorizes drug substances by aqueous solubility and intestinal permeability. It informs formulation, dissolution testing, and possible bioequivalence strategies for oral nonprescription medicines. |
| BHA | Butylated Hydroxyanisole: A synthetic antioxidant used to limit oxidative deterioration in certain formulations, ingredients, and packaging applications. Its use must comply with applicable concentration and labeling requirements. |
| BHT | Butylated Hydroxytoluene: A synthetic antioxidant used to protect susceptible ingredients and products from oxidation. Formulators evaluate permitted uses, concentration limits, compatibility, and consumer acceptance. |
| BMD | Benchmark Dose: A dose associated with a predefined change in an adverse response compared with background. Toxicologists use it as a quantitative basis for deriving health-protective exposure limits. |
| BMDL | Benchmark Dose Lower Confidence Limit: The lower statistical confidence bound on a benchmark dose. It provides a conservative point of departure for ingredient, contaminant, and constituent risk assessments. |
| BMR | Basal Metabolic Rate: The energy expended by the body at rest to sustain basic physiological functions. It is relevant to weight-management, sports-nutrition, and personalized-nutrition products and claims. |
| BMR | Benchmark Response: The predefined magnitude of change in an adverse outcome used to calculate a benchmark dose. Selecting the response level materially affects toxicological risk assessment. |
| BP | British Pharmacopoeia: The official United Kingdom collection of quality standards for medicinal substances and products. Its monographs and methods may govern ingredients, finished medicines, excipients, and analytical testing. |
| BPR | Batch Production Record: The controlled record documenting how a specific batch was manufactured, packaged, tested, reviewed, and released. Complete records provide traceability and evidence of compliance with approved instructions. |
| BRCGS | Brand Reputation through Compliance Global Standards: A family of certification standards covering areas such as food safety, packaging, storage, and distribution. Certification is often requested by retailers and supply-chain partners. |
| BSE | Bovine Spongiform Encephalopathy: A transmissible neurological disease relevant to risk controls for bovine-derived gelatin, collagen, glandular materials, and other animal-origin ingredients. |
| BTC | Behind the Counter: A retail access category for nonprescription products kept behind a pharmacy counter and sold subject to additional controls. Common controls include purchaser identification, quantity limits, or pharmacist involvement. |
| C | |
| CAC | Codex Alimentarius Commission: The international food-standards body established by the United Nations food and health agencies. Its standards and guidelines influence supplement composition, contaminants, labeling, trade, and national regulation. |
| CAERS | CFSAN Adverse Event Reporting System: The U.S. system used to collect adverse-event and product-complaint reports involving foods, dietary supplements, and cosmetics. Its data support signal detection and regulatory follow-up. |
| CAPA | Corrective and Preventive Action: A structured quality process for investigating problems, correcting root causes, and preventing recurrence or occurrence elsewhere. Effective execution is critical after deviations, complaints, audit findings, and test failures. |
| CARES Act | Coronavirus Aid, Relief, and Economic Security Act: A 2020 U.S. law that, among its broader provisions, modernized the nonprescription drug monograph system by introducing administrative orders and a dedicated user-fee framework. |
| CARU | Children’s Advertising Review Unit: A U.S. self-regulatory program that evaluates advertising and privacy practices directed to children. Its guidance is relevant when marketing vitamins, remedies, and other child-oriented health products. |
| CBD | Cannabidiol: A non-intoxicating cannabinoid used in some consumer products. Its legal status, permitted claims, quality specifications, contaminant controls, and allowable product categories vary substantially by jurisdiction. |
| CCP | Critical Control Point: A manufacturing step at which control can prevent, eliminate, or reduce a significant food-safety hazard to an acceptable level. Each point requires defined limits, monitoring, and corrective actions. |
| CDER | Center for Drug Evaluation and Research: The U.S. Food and Drug Administration center responsible for human drugs, including nonprescription medicines, prescription-to-nonprescription switches, monographs, labeling, manufacturing quality, and pharmacovigilance. |
| CFR | Code of Federal Regulations: The codification of general and permanent rules issued by U.S. federal agencies. Product teams use relevant provisions to determine manufacturing, labeling, safety, registration, and marketing obligations. |
| CFSAN | Center for Food Safety and Applied Nutrition: The U.S. Food and Drug Administration center overseeing most foods, dietary supplements, food ingredients, nutrition labeling, cosmetics, and related safety programs. |
| cGMP | Current Good Manufacturing Practice: Legally enforceable U.S. requirements governing controlled production and quality operations. Distinct rules apply to dietary supplements and drug products, making correct regulatory classification essential. |
| CHPA | Consumer Healthcare Products Association: A U.S. trade association representing manufacturers of nonprescription medicines, dietary supplements, and consumer medical devices. It develops industry guidance and engages on regulatory and self-care policy. |
| CLA | Conjugated Linoleic Acid: A family of fatty-acid isomers marketed in sports-nutrition and weight-management supplements. Product teams assess isomer composition, dosage, oxidative stability, evidence, and claim wording. |
| CMC | Chemistry, Manufacturing, and Controls: The regulatory and technical information demonstrating how a drug product and its ingredients are made, tested, controlled, packaged, and kept stable throughout shelf life. |
| CMEA | Combat Methamphetamine Epidemic Act of 2005: A U.S. law imposing retail controls on products containing pseudoephedrine, ephedrine, or phenylpropanolamine. Requirements include access restrictions, purchaser records, identification checks, and sales limits. |
| CoA | Certificate of Analysis: A supplier or laboratory document reporting a material’s or product’s test results against specifications. Manufacturers must determine whether the document is reliable and whether confirmatory testing is required. |
| CoQ10 | Coenzyme Q10: A lipid-soluble compound involved in cellular energy production and sold in cardiovascular and healthy-aging supplements. Important formulation issues include chemical form, bioavailability, oxidation, and dose substantiation. |
| CPSC | Consumer Product Safety Commission: The U.S. agency responsible for consumer product safety and administration of poison-prevention packaging requirements that affect many medicines and certain hazardous household products. |
| CPV | Continued Process Verification: Ongoing collection and analysis of manufacturing data to confirm that a commercial process remains in a state of control. It helps detect drift and guides process improvement throughout the product life cycle. |
| CQA | Critical Quality Attribute: A physical, chemical, biological, or microbiological property that must remain within an appropriate range to ensure product quality. Examples include potency, dissolution, microbial limits, and dosage-unit uniformity. |
| CRC | Child-Resistant Closure: A package closure designed to be difficult for young children to open while remaining usable by adults. Qualification includes prescribed effectiveness and adult-use testing. |
| CRN | Council for Responsible Nutrition: A U.S. trade association representing dietary-supplement and functional-food companies. Its voluntary guidelines and technical resources address areas such as ingredient quality, labeling, and responsible marketing. |
| CYP | Cytochrome P450: A major family of drug-metabolizing enzymes. Inhibition or induction by botanical ingredients, supplements, or medicines can alter exposure and create clinically relevant interaction risks. |
| D | |
| DDI | Drug–Drug Interaction: A change in the effect or disposition of one medicine caused by another. Interaction assessment is important for combination products, self-selection, warnings, and use alongside prescription therapies. |
| DEA | Drug Enforcement Administration: The U.S. federal agency that enforces controlled-substance laws and certain retail controls affecting precursor chemicals and products such as pseudoephedrine-containing remedies. |
| DHA | Docosahexaenoic Acid: A long-chain omega-3 fatty acid used in prenatal, infant, cognitive-health, and general wellness products. Source, oxidation control, concentration, sustainability, and evidence are important commercial considerations. |
| DHEA | Dehydroepiandrosterone: An endogenous steroid hormone marketed as a dietary supplement in some countries. Its regulatory classification, sports eligibility, contraindications, and allowable claims vary significantly across markets. |
| DIN | Drug Identification Number: An eight-digit identifier assigned by Health Canada to an authorized drug product. It identifies the manufacturer, active ingredient, strength, dosage form, and route of administration. |
| DMF | Drug Master File: A confidential submission containing detailed information about facilities, processes, or materials used in drug manufacturing. Regulators may reference it when reviewing nonprescription drug applications. |
| DNA | Deoxyribonucleic Acid: Genetic material used in molecular methods to authenticate botanical or microbial ingredients and detect substitution. Testing must account for processing that can degrade or remove genetic material. |
| DRI | Dietary Reference Intake: An umbrella term for nutrient-intake reference values used in the United States and Canada. These values support dietary assessment, formulation, nutrition policy, and safety evaluation. |
| DRV | Dietary Reference Value: A general term for nutrient-intake benchmarks used by authorities, particularly in Europe and the United Kingdom. The values inform dietary guidance, labeling, and product formulation. |
| DSHEA | Dietary Supplement Health and Education Act of 1994: The U.S. law that established the modern statutory framework for dietary supplements, including product definition, ingredient status, labeling, claims, and regulatory responsibilities. |
| DSI | Drug–Supplement Interaction: A clinically relevant change in drug or supplement effects caused by their concurrent use. Assessment considers metabolism, absorption, pharmacodynamic effects, consumer warnings, and vulnerable populations. |
| DTC | Direct to Consumer: A commercial model in which a brand markets and sells products directly to end users. It provides greater control over consumer data and education while increasing responsibility for compliant claims and fulfillment. |
| DV | Daily Value: A nutrient reference amount used on U.S. food and supplement labels to help consumers interpret the nutritional contribution of a serving. Applicable values depend on the nutrient and population group. |
| E | |
| EAR | Estimated Average Requirement: The daily nutrient intake estimated to meet the requirement of half the healthy individuals in a defined life-stage and sex group. It is primarily used for population assessment and planning. |
| EC | European Commission: The executive body of the European Union, responsible for proposing and implementing legislation affecting food supplements, nutrition and health claims, novel foods, medicines, and consumer protection. |
| EER | Estimated Energy Requirement: The average dietary energy intake predicted to maintain energy balance in a healthy person with defined characteristics and activity levels. It supports nutrition planning and weight-management analysis. |
| EFSA | European Food Safety Authority: The European Union agency providing scientific assessments on food and feed risks. Its opinions are central to ingredient safety, tolerable intakes, novel foods, contaminants, and nutrition or health claims. |
| EGCG | Epigallocatechin Gallate: A principal catechin in green-tea extracts used in antioxidant and metabolic-health supplements. Concentrated products require careful control of dose, extract composition, contaminants, and liver-safety considerations. |
| EMA | Economically Motivated Adulteration: Intentional substitution, dilution, concealment, or misrepresentation performed for financial gain. High-value botanicals and specialty ingredients require vulnerability assessment and targeted authenticity testing. |
| EMA | European Medicines Agency: The European Union agency responsible for scientific evaluation and safety monitoring of medicines. Its guidelines and pharmacovigilance systems can affect centrally regulated and nationally authorized medicinal products. |
| EPA | Eicosapentaenoic Acid: A long-chain omega-3 fatty acid used in cardiovascular and general wellness products. Key considerations include source, concentration, oxidation, dosage, evidence, and distinction between supplement and drug claims. |
| EU | European Union: A political and economic union whose harmonized and national rules shape medicines, food supplements, nutrition claims, novel ingredients, manufacturing, and cross-border market access. |
| F | |
| FAERS | FDA Adverse Event Reporting System: The U.S. database containing adverse-event and medication-error reports for drug products, including nonprescription medicines. Safety teams use its data for signal detection and ongoing benefit-risk assessment. |
| FALCPA | Food Allergen Labeling and Consumer Protection Act of 2004: A U.S. law establishing labeling requirements for major food allergens. It affects ingredient declarations and allergen controls for foods and dietary supplements. |
| FAO | Food and Agriculture Organization of the United Nations: A United Nations agency that develops food, nutrition, agriculture, and safety guidance and jointly administers international food-standard programs with the World Health Organization. |
| FDA | Food and Drug Administration: The U.S. agency regulating nonprescription drugs, dietary supplements, foods, cosmetics, medical products, manufacturing quality, labeling, safety reporting, and market enforcement. |
| FD&C Act | Federal Food, Drug, and Cosmetic Act: The foundational U.S. statute governing foods, drugs, cosmetics, and related products. It establishes core requirements for adulteration, misbranding, approvals, inspections, labeling, and enforcement. |
| FDC | Fixed-Dose Combination: A medicinal product containing two or more active ingredients in a predetermined ratio. Development must justify the combination, doses, consumer use, labeling, interactions, and contribution of each component. |
| FEFO | First Expired, First Out: An inventory-rotation method that dispatches stock with the earliest expiry date first. It reduces write-offs and helps prevent shipment of products with insufficient remaining shelf life. |
| FMEA | Failure Modes and Effects Analysis: A structured method for identifying potential failures, assessing their causes and consequences, and prioritizing risk controls. It is used in formulation, process, packaging, and quality-system design. |
| FOP | Front of Pack: The principal display area used for prominent branding, benefit communication, dosage-form information, and required label statements. Claims must remain consistent with the full label and applicable regulations. |
| FOS | Fructooligosaccharides: Short-chain carbohydrates used as prebiotic ingredients and sometimes as sweeteners or fiber sources. Specifications address chain-length profile, purity, stability, tolerance, and substantiation of digestive-health claims. |
| FSA | Food Standards Agency: The United Kingdom authority responsible for food safety and related consumer protection in England, Wales, and Northern Ireland. Its remit includes food supplements and food-law enforcement guidance. |
| FSANZ | Food Standards Australia New Zealand: The binational authority that develops food standards for Australia and New Zealand. Its code affects supplemented foods, vitamins and minerals, novel ingredients, labeling, and health claims. |
| FSMA | Food Safety Modernization Act: A U.S. law emphasizing prevention of food-safety hazards through facility controls, supplier verification, inspection, and import oversight. Its applicability depends on product and facility activities. |
| FSSC 22000 | Food Safety System Certification 22000: A certification scheme combining an international food-safety management standard with sector-specific prerequisite programs and additional requirements. It is commonly used to demonstrate supply-chain assurance. |
| FSVP | Foreign Supplier Verification Program: A U.S. framework requiring covered importers to verify that foreign-supplied foods meet applicable safety standards. Responsibilities may include hazard evaluation, supplier approval, audits, sampling, and recordkeeping. |
| FTC | Federal Trade Commission: The U.S. agency responsible for preventing unfair or deceptive advertising and commercial practices. Health-benefit claims require competent and reliable scientific substantiation appropriate to the claim. |
| FTIR | Fourier Transform Infrared Spectroscopy: An analytical technique that identifies or characterizes materials from their infrared absorption patterns. It is used for rapid raw-material verification and detection of some substitutions or contaminants. |
| G | |
| GABA | Gamma-Aminobutyric Acid: An inhibitory neurotransmitter sold as an ingredient in stress, relaxation, and sleep supplements. Product development considers source, dosage, evidence, stability, and jurisdiction-specific claim restrictions. |
| GACP | Good Agricultural and Collection Practices: Quality principles for cultivating, harvesting, collecting, and handling medicinal plants and botanical raw materials. They support identity, traceability, consistency, contaminant control, and sustainable sourcing. |
| GC-MS | Gas Chromatography–Mass Spectrometry: An analytical technique that separates and identifies volatile or semi-volatile compounds. Applications include testing flavors, essential oils, solvents, pesticides, adulterants, and botanical-marker profiles. |
| GCP | Good Clinical Practice: An international ethical and scientific quality standard for designing, conducting, recording, and reporting clinical studies. It protects participants and supports credible evidence for safety and efficacy claims. |
| GDP | Good Distribution Practice: Quality requirements for storage, transport, traceability, and handling of medicinal products throughout distribution. Controls protect products from temperature excursions, damage, theft, falsification, and mix-ups. |
| GDP | Good Documentation Practice: Principles ensuring that records are attributable, legible, contemporaneous, original, accurate, complete, and controlled. Reliable documentation is essential for batch release, investigations, audits, and inspections. |
| GFSI | Global Food Safety Initiative: An industry-led program that benchmarks food-safety certification schemes. Manufacturers and retailers use recognized certifications to support supplier qualification and supply-chain assurance. |
| GLA | Gamma-Linolenic Acid: An omega-6 fatty acid found in oils such as evening primrose and borage oil. Quality management focuses on fatty-acid composition, oxidation, source authenticity, contaminants, and claim substantiation. |
| GLP | Good Laboratory Practice: A quality system governing the organization, conduct, documentation, and reporting of nonclinical laboratory studies. It supports reliable safety data submitted to regulatory authorities. |
| GMO | Genetically Modified Organism: An organism whose genetic material has been altered through defined biotechnology methods. Ingredient sourcing, identity preservation, testing, labeling, and consumer expectations vary by market. |
| GMP | Good Manufacturing Practice: The quality principles and regulatory requirements used to ensure products are consistently produced and controlled. Requirements vary by jurisdiction and product classification. |
| GOED | Global Organization for EPA and DHA Omega-3s: An international trade association for the long-chain omega-3 industry. Its voluntary monograph and technical resources address oxidation, purity, environmental contaminants, and product quality. |
| GRAS | Generally Recognized as Safe: A U.S. regulatory status for a substance whose safety under intended food-use conditions is generally recognized by qualified experts. It applies to food ingredients, not automatically to dietary ingredients or drug uses. |
| GRASE | Generally Recognized as Safe and Effective: The standard used to determine whether active ingredients and conditions of use are suitable for inclusion in the U.S. nonprescription drug monograph system. |
| GSL | General Sales List: A United Kingdom classification for medicines that may be sold without a prescription outside pharmacies, subject to approved indications, strengths, pack sizes, and labeling conditions. |
| H | |
| HACCP | Hazard Analysis and Critical Control Points: A preventive food-safety system that identifies significant hazards and establishes controls at critical stages. It is widely applied to ingredient and supplement manufacturing. |
| HBC | Health and Beauty Care: A retail category encompassing nonprescription remedies, vitamins, personal-care products, and related consumer goods. Category definitions vary by retailer and are important for assortment and channel analysis. |
| HDPE | High-Density Polyethylene: A durable plastic commonly used for tablet and capsule bottles. Packaging qualification considers moisture protection, chemical compatibility, extractables, closure performance, and recyclability. |
| HMB | Beta-Hydroxy Beta-Methylbutyrate: A metabolite of leucine used in sports-nutrition and healthy-aging products targeting muscle maintenance or recovery. Evidence, chemical form, dose, and target population affect product positioning. |
| HMPC | Committee on Herbal Medicinal Products: The European Medicines Agency committee responsible for scientific opinions and monographs on herbal substances and preparations used in medicinal products. |
| HPLC | High-Performance Liquid Chromatography: A core analytical technique for separating, identifying, and quantifying ingredients, active compounds, impurities, preservatives, and degradation products. |
| HPMC | Hydroxypropyl Methylcellulose: A cellulose-derived excipient used in vegetarian capsule shells, tablet coatings, binders, and modified-release systems. Grade selection affects viscosity, release performance, processing, and stability. |
| HPTLC | High-Performance Thin-Layer Chromatography: An enhanced planar chromatography technique widely used to identify botanical materials and compare chemical fingerprints. It is valuable for detecting substitution and batch-to-batch variation. |
| HSA | Health Sciences Authority: Singapore’s national regulator for health products, including medicines, traditional medicines, health supplements, cosmetics, and tobacco-related products. |
| I | |
| IADSA | International Alliance of Dietary/Food Supplement Associations: A global association representing the supplement sector in international policy and regulatory discussions. It tracks market requirements and supports regulatory convergence. |
| ICH | International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use: A global body that develops harmonized pharmaceutical guidelines covering quality, safety, efficacy, and multidisciplinary topics. Its standards influence nonprescription drug development and life-cycle management. |
| ICP-MS | Inductively Coupled Plasma Mass Spectrometry: A highly sensitive technique for measuring elemental impurities and nutrients. It is widely used to quantify heavy metals in botanical ingredients, mineral supplements, and finished products. |
| IFOS | International Fish Oil Standards: A third-party testing and certification program for fish-oil products. Testing commonly addresses omega-3 concentration, oxidation, environmental contaminants, and conformance to quality specifications. |
| IFS | International Featured Standards: A family of product- and process-certification standards covering food, logistics, brokerage, and related supply-chain activities. Retailers may require certification from manufacturers and suppliers. |
| INCI | International Nomenclature of Cosmetic Ingredients: A standardized system of ingredient names used on cosmetic labels. It matters for topical consumer-health products that are regulated as cosmetics or combination cosmetic-drug products in certain markets. |
| IPEC | International Pharmaceutical Excipients Council: A federation of regional organizations that develops guidance for pharmaceutical excipient quality, manufacturing, distribution, risk assessment, and supplier qualification. |
| IR | Immediate Release: A dosage form designed to release its active ingredient without a deliberate delay or prolonged-release mechanism. Dissolution, onset, stability, and dosing frequency guide formulation choices. |
| IRB | Institutional Review Board: An independent committee that reviews human-subject research to protect participant rights, safety, and welfare. Approval is generally required before conducting interventional product studies in the United States. |
| ISO | International Organization for Standardization: An independent international body that publishes standards for quality, food safety, testing, packaging, environmental management, and other activities relevant to product development and manufacturing. |
| ISO 22000 | Food Safety Management Systems — Requirements for Any Organization in the Food Chain: An international standard specifying a systematic approach to food-safety management, including hazard control, communication, prerequisite programs, and continual improvement. |
| ISO/IEC 17025 | General Requirements for the Competence of Testing and Calibration Laboratories: An international standard covering laboratory competence, impartiality, consistent operation, method validation, measurement traceability, and result reporting. |
| IU | International Unit: A unit expressing biological activity or potency for certain vitamins, hormones, and other substances. Conversion to mass units is substance-specific and must follow applicable labeling rules. |
| J | |
| JECFA | Joint Food and Agriculture Organization of the United Nations/World Health Organization Expert Committee on Food Additives: An international scientific committee that evaluates food additives, contaminants, natural toxicants, and veterinary-drug residues and establishes health-based guidance values. |
| JP | Japanese Pharmacopoeia: Japan’s official compendium of standards for medicines, active substances, excipients, and analytical methods. Applicable monographs are legally significant for products marketed in Japan. |
| L | |
| LC-MS/MS | Liquid Chromatography–Tandem Mass Spectrometry: A highly selective analytical technique used to quantify active constituents, contaminants, metabolites, and trace-level adulterants in complex formulations and biological samples. |
| LD50 | Median Lethal Dose: The dose expected to cause death in half of a test population under defined conditions. Although modern assessments seek to reduce animal testing, the value remains common in toxicological literature. |
| LIMS | Laboratory Information Management System: A digital platform for controlling samples, specifications, methods, results, instruments, and approvals. It strengthens traceability, data integrity, and laboratory workflow management. |
| LOAEL | Lowest-Observed-Adverse-Effect Level: The lowest tested exposure at which a statistically or biologically significant adverse effect is observed. It may serve as a point of departure when no safer observed level is available. |
| LOD | Limit of Detection: The lowest amount of an analyte that an analytical method can reliably distinguish from background, although not necessarily quantify accurately. |
| LOD | Loss on Drying: A compendial or laboratory test measuring the mass lost when a sample is dried under defined conditions. It is commonly used to control moisture and volatile content. |
| LOQ | Limit of Quantitation: The lowest analyte level that a method can measure with acceptable accuracy and precision. It is critical when specifications require reliable trace-level results. |
| M | |
| MA | Marketing Authorisation: Regulatory permission to place a medicinal product on the market in jurisdictions using the European authorization model. It defines the approved product, indications, labeling, and conditions of use. |
| MAA | Marketing Authorisation Application: The dossier submitted to obtain permission to market a medicinal product. It contains quality, nonclinical, clinical, labeling, pharmacovigilance, and administrative information. |
| MCT | Medium-Chain Triglyceride: A lipid ingredient used in nutrition products, softgels, powders, and delivery systems. It can function as an energy source, carrier oil, processing aid, or formulation excipient. |
| MDD | Maximum Daily Dose: The highest labeled amount intended for consumption within a day. It drives safety assessment, exposure calculations, warning language, package sizing, and directions for use. |
| MED | Minimal Erythema Dose: The smallest ultraviolet dose that produces perceptible skin redness under defined test conditions. It is used in evaluating sunscreen protection and photobiological responses. |
| MedDRA | Medical Dictionary for Regulatory Activities: A standardized international medical terminology used to code adverse events, medical history, indications, and other safety information for regulatory reporting and analysis. |
| MHLW | Ministry of Health, Labour and Welfare: The Japanese government ministry responsible for national health policy and regulation of medicines, foods, food additives, labeling, and health-related products. |
| MHRA | Medicines and Healthcare products Regulatory Agency: The United Kingdom regulator responsible for medicines and medical products, including nonprescription classifications, licensing, manufacturing oversight, advertising, and pharmacovigilance. |
| MOA | Mechanism of Action: The biological process through which an ingredient or medicine produces an effect. A credible mechanism can support development strategy but does not replace clinical substantiation. |
| MOE | Margin of Exposure: The ratio between a toxicological point of departure and estimated human exposure. Larger margins generally indicate lower concern, although interpretation depends on the data and hazard. |
| MOS | Margin of Safety: A comparison between an exposure associated with no or minimal harm and the expected consumer exposure. It helps assess whether an ingredient’s intended use provides adequate safety protection. |
| MRL | Maximum Residue Limit: The highest legally permitted concentration of a pesticide or veterinary-drug residue in a food or agricultural commodity. Botanical and animal-derived ingredients may require targeted compliance testing. |
| MSM | Methylsulfonylmethane: An organosulfur compound used primarily in joint-health and sports-recovery supplements. Specifications address identity, assay, impurities, particle size, and source quality. |
| MVM | Multivitamin/Mineral: A supplement category combining multiple vitamins and minerals in one product. Formulation requires managing nutrient interactions, overages, stability, dosage-form capacity, and population-specific intake limits. |
| MVTR | Moisture Vapor Transmission Rate: The rate at which water vapor passes through packaging material under specified conditions. It helps determine whether a package can protect moisture-sensitive tablets, capsules, powders, or gummies. |
| N | |
| NAC | N-Acetyl-L-Cysteine: A cysteine derivative used as a medicine and marketed in supplements in some jurisdictions. Its classification, permissible claims, dosage, and market status require jurisdiction-specific assessment. |
| NAD+ | Nicotinamide Adenine Dinucleotide: A coenzyme involved in cellular energy metabolism and redox reactions. Products positioned around healthy aging may use the compound itself or precursors intended to influence its levels. |
| NAM | National Academy of Medicine: A U.S. scientific institution within the National Academies that contributes to authoritative nutrition and health guidance, including work underpinning nutrient reference values. |
| NDA | New Drug Application: The U.S. submission seeking approval to market a new drug. It is particularly relevant when developing novel nonprescription products or switching an approved medicine from prescription status. |
| NDC | National Drug Code: The U.S. product identifier used for listed drugs. It identifies the labeler, product, and package configuration and supports distribution, reimbursement, recalls, and data management. |
| NDI | New Dietary Ingredient: A dietary ingredient not marketed in the United States before the statutory cutoff date of October 15, 1994. Its status can trigger premarket safety-notification obligations. |
| NDIN | New Dietary Ingredient Notification: A premarket submission providing the U.S. Food and Drug Administration with the basis for concluding that a new dietary ingredient will reasonably be expected to be safe under intended conditions of use. |
| NHP | Natural Health Product: A Canadian regulatory category covering products such as vitamins, minerals, herbal remedies, probiotics, and certain traditional medicines. Products generally require authorization before sale. |
| NIR | Near-Infrared Spectroscopy: A rapid, usually nondestructive analytical technique used for raw-material identification and process monitoring. Reliable use requires representative reference libraries and validated chemometric models. |
| NLEA | Nutrition Labeling and Education Act of 1990: A U.S. law that established major nutrition-labeling requirements and a framework for nutrient-content and health claims on foods. |
| NLT | Not Less Than: A specification term establishing a minimum acceptable result, such as potency, dissolution, or viable count. The stated basis and test conditions must be unambiguous. |
| NMN | Nicotinamide Mononucleotide: A precursor in nicotinamide adenine dinucleotide metabolism marketed for healthy-aging applications. Its regulatory status and permissible use vary, requiring current market-specific review. |
| NMR | Nuclear Magnetic Resonance Spectroscopy: An analytical technique used to determine molecular structure, identify ingredients, quantify components, and compare complex chemical fingerprints for authenticity testing. |
| NNHPD | Natural and Non-prescription Health Products Directorate: The Health Canada directorate responsible for natural health products and nonprescription medicines, including product licensing, site licensing, evidence, labeling, and post-market oversight. |
| NOAEL | No-Observed-Adverse-Effect Level: The highest tested exposure at which no biologically significant adverse effect is observed. It is frequently used as a point of departure for deriving safe intake levels. |
| NOEL | No-Observed-Effect Level: The highest tested exposure at which no treatment-related effect of any kind is observed. It differs from a level based specifically on adverse effects. |
| NPN | Natural Product Number: An eight-digit identifier issued by Health Canada to an authorized natural health product. Display on the label indicates that the product has received a product licence. |
| NRV | Nutrient Reference Value: A labeling benchmark used in many markets to express the contribution of vitamins and minerals per serving. Values and terminology vary by jurisdiction. |
| NRT | Nicotine Replacement Therapy: Medicines that deliver controlled nicotine doses to reduce withdrawal symptoms during smoking cessation. Formats include gums, lozenges, patches, sprays, and inhalation products. |
| NSAID | Nonsteroidal Anti-Inflammatory Drug: A major class of pain-relief and fever-reduction medicines that includes several nonprescription active ingredients. Labeling addresses gastrointestinal, cardiovascular, renal, allergy, and interaction risks. |
| NSF | NSF International: An independent standards, testing, and certification organization. Its dietary-supplement programs assess manufacturing practices, label-claim accuracy, contaminants, and, in certain programs, substances prohibited in sport. |
| O | |
| OAI | Official Action Indicated: A U.S. Food and Drug Administration inspection classification indicating that objectionable conditions warrant regulatory or administrative action. |
| ODS | Office of Dietary Supplements: A U.S. National Institutes of Health office that supports and evaluates research, develops evidence resources, and provides scientific information about dietary supplements. |
| ODSP | Office of Dietary Supplement Programs: The U.S. Food and Drug Administration office responsible for regulatory policy and enforcement programs involving dietary supplements. |
| ODT | Orally Disintegrating Tablet: A tablet designed to disintegrate rapidly in the mouth without requiring water. Development focuses on taste masking, friability, moisture protection, disintegration, and consumer usability. |
| OEHHA | Office of Environmental Health Hazard Assessment: The California agency that evaluates chemical hazards and administers the state’s Proposition 65 list and safe-harbor levels, which can affect supplement warnings and reformulation decisions. |
| OMOR | Over-the-Counter Monograph Order Request: A formal request asking the U.S. Food and Drug Administration to issue, amend, or repeal an administrative order governing a nonprescription drug monograph condition. |
| OMUFA | Over-the-Counter Monograph User Fee Act: The U.S. user-fee program funding regulatory activities for monograph-based nonprescription drugs. It establishes facility fees and fees for certain order requests. |
| OOS | Out of Specification: A test result falling outside an approved acceptance criterion. It requires a scientifically sound laboratory and manufacturing investigation before disposition decisions are made. |
| OOT | Out of Trend: A result that remains within specification but departs unexpectedly from historical or expected behavior. Investigation can reveal process drift, analytical problems, or emerging stability issues. |
| ORAC | Oxygen Radical Absorbance Capacity: An in vitro assay estimating antioxidant capacity under specified conditions. Laboratory values do not by themselves demonstrate clinical benefit and require careful interpretation in marketing claims. |
| OTC | Over the Counter: Medicines available without a prescription when consumers can self-diagnose, self-select, and use them safely according to the label and any applicable sale restrictions. |
| OTR | Oxygen Transmission Rate: The rate at which oxygen permeates packaging material under defined conditions. It is an important selection criterion for oxidation-sensitive oils, probiotics, vitamins, and botanical products. |
| P | |
| PA | Protection Grade of UVA: A sunscreen rating system based on persistent pigment darkening measurements. More plus signs indicate greater measured protection from ultraviolet A radiation. |
| PABA | Para-Aminobenzoic Acid: A compound historically used as a sunscreen active and also encountered in supplement contexts. Its permitted uses and consumer acceptance vary by jurisdiction and product category. |
| PBRER | Periodic Benefit-Risk Evaluation Report: A structured pharmacovigilance report presenting cumulative safety information, exposure, signals, and an integrated evaluation of a medicine’s benefits and risks. |
| PCHF | Preventive Controls for Human Food: U.S. food-safety requirements covering hazard analysis, risk-based preventive controls, monitoring, corrective actions, verification, supply-chain controls, and recall planning for covered facilities. |
| PCQI | Preventive Controls Qualified Individual: A person qualified through appropriate training or experience to develop and oversee specified elements of a U.S. food-safety plan for a covered facility. |
| PCR | Polymerase Chain Reaction: A molecular method that amplifies targeted genetic material. Applications include botanical authentication, species identification, pathogen detection, and verification of probiotic organisms. |
| PDE | Permitted Daily Exposure: A health-based limit representing an amount of a substance unlikely to cause adverse effects if consumed daily over a lifetime. It is used for impurities and cross-contamination risk management. |
| PET | Polyethylene Terephthalate: A clear, lightweight polymer used for bottles and other packaging. Qualification evaluates barrier properties, compatibility, light protection, mechanical performance, and recyclability. |
| PIC/S | Pharmaceutical Inspection Co-operation Scheme: An international arrangement promoting harmonized pharmaceutical manufacturing inspections and inspector training. Its guidance influences quality expectations in member jurisdictions. |
| PIL | Patient Information Leaflet: A regulated document supplied with a medicine that explains indications, dosing, warnings, contraindications, adverse effects, storage, and other information in consumer-friendly language. |
| PMS | Post-Market Surveillance: The systematic monitoring of product safety, quality, performance, complaints, and real-world use after launch. Findings may trigger label changes, corrective actions, recalls, or further studies. |
| POM | Prescription-Only Medicine: A United Kingdom medicine classification requiring a prescription from an authorized prescriber. Reclassification to nonprescription status requires evidence that consumers can use the product safely. |
| PPD | Persistent Pigment Darkening: A skin-response endpoint used to assess ultraviolet A protection from sunscreens. It underpins certain regional grading systems and protection-factor calculations. |
| PPI | Proton Pump Inhibitor: A class of medicines that suppress gastric acid production. Nonprescription versions require clear treatment-duration, interaction, contraindication, and referral instructions. |
| ppm | Parts per Million: A concentration unit equivalent to one part of a substance per million parts of the whole. It is commonly used for contaminants, preservatives, trace constituents, and specification limits. |
| PPPA | Poison Prevention Packaging Act: The U.S. law authorizing child-resistant packaging requirements for specified medicines and hazardous substances while providing defined exemptions and testing standards. |
| PPQ | Process Performance Qualification: Documented evidence that a commercial manufacturing process can reproducibly produce acceptable product under routine conditions. It is a central stage of process validation. |
| PQR | Product Quality Review: A periodic evaluation of manufacturing, testing, deviations, complaints, stability, changes, and trends. It confirms process consistency and identifies opportunities for corrective action or improvement. |
| PRI | Population Reference Intake: A European nutrient benchmark intended to meet the requirements of nearly all healthy people in a defined population group. It supports dietary guidance and nutritional assessment. |
| PSUR | Periodic Safety Update Report: A recurring regulatory report summarizing worldwide safety data and evaluating whether new information changes a medicine’s benefit-risk profile. |
| PTWI | Provisional Tolerable Weekly Intake: A health-based guidance value for contaminants that may accumulate in the body and are appropriately assessed over weekly rather than daily exposure. |
| PV | Pharmacovigilance: The science and activities concerned with detecting, assessing, understanding, and preventing adverse effects or other medicine-related problems throughout a product’s life cycle. |
| Q | |
| QbD | Quality by Design: A systematic development approach that begins with predefined objectives and uses product understanding, process understanding, and risk management to build quality into a product. |
| QMS | Quality Management System: The integrated governance, procedures, responsibilities, resources, and records used to control quality. It covers suppliers, manufacturing, laboratories, deviations, changes, complaints, and continual improvement. |
| QTPP | Quality Target Product Profile: A prospective summary of the quality characteristics a drug product should achieve to ensure intended performance. It guides formulation, process development, packaging, and control strategy. |
| R | |
| RACC | Reference Amount Customarily Consumed: The U.S. reference quantity generally consumed per eating occasion for a food category. It helps determine serving size and can affect nutrition labeling and claims. |
| RCT | Randomized Controlled Trial: A study that randomly assigns participants to intervention and comparison groups. When well designed, it provides strong evidence for evaluating product efficacy and health claims. |
| RDA | Recommended Dietary Allowance: The average daily nutrient intake sufficient to meet the requirements of nearly all healthy individuals in a defined life-stage and sex group. |
| RDI | Reference Daily Intake: A U.S. regulatory reference value for vitamins, minerals, and certain other nutrients. It forms part of the framework used to establish label daily values. |
| RfD | Reference Dose: An estimate of daily oral exposure likely to be without appreciable risk during a lifetime. It is used in risk assessments for chemicals and contaminants. |
| RH | Relative Humidity: The amount of water vapor in air relative to the maximum possible at a given temperature. It is a critical condition in stability studies, manufacturing, storage, and packaging qualification. |
| RMP | Risk Management Plan: A regulatory document describing a medicine’s safety profile, pharmacovigilance activities, and measures used to prevent or minimize important risks. |
| RNI | Reference Nutrient Intake: A United Kingdom nutrient benchmark intended to meet the needs of nearly all people in a defined group. It informs dietary assessment and nutrition policy. |
| Rx | Prescription: A designation for medicines supplied under authorization from a qualified prescriber. Prescription-to-nonprescription switches require evidence that consumers can self-select and use the product safely. |
| S | |
| SAE | Serious Adverse Event: An event meeting seriousness criteria such as death, life-threatening illness, hospitalization, disability, congenital anomaly, or another medically important outcome. Expedited reporting obligations may apply. |
| SAHPRA | South African Health Products Regulatory Authority: South Africa’s regulator for medicines, medical products, complementary medicines, and related health products, including licensing, quality oversight, and market surveillance. |
| SAM-e | S-Adenosyl-L-Methionine: A naturally occurring methyl donor marketed in mood, liver-health, and joint-health supplements. Stability, enteric protection, salt form, dosage, and medicine interactions require careful management. |
| SDS | Safety Data Sheet: A standardized document describing a chemical’s hazards, handling, storage, exposure controls, transport considerations, and emergency measures. It supports worker safety and supplier qualification. |
| SFE | Supercritical Fluid Extraction: An extraction method, commonly using carbon dioxide, that isolates oils or botanical constituents with limited solvent residue. Process conditions determine selectivity, yield, and chemical profile. |
| SIDI | Standardized Information on Dietary Ingredients: A standardized data framework for communicating dietary-ingredient identity, manufacturing, specifications, safety, allergens, and regulatory information between suppliers and finished-product manufacturers. |
| SmPC | Summary of Product Characteristics: The regulator-approved professional prescribing information for a medicine in European-style authorization systems. It defines indications, dosing, contraindications, warnings, interactions, and pharmacological properties. |
| SNDA | Supplemental New Drug Application: A U.S. submission requesting approval for certain changes to an already approved drug, such as new indications, strengths, dosage forms, labeling, or manufacturing arrangements. |
| SOP | Standard Operating Procedure: An approved written instruction describing how a recurring activity must be performed and documented. Controlled procedures promote consistency, training, compliance, and accountability. |
| SPF | Sun Protection Factor: A standardized measure of a sunscreen’s protection against sunburn-producing ultraviolet radiation, primarily ultraviolet B. Claims require testing under applicable regulatory or consensus methods. |
| SQF | Safe Quality Food: A food-safety and quality certification program used by manufacturers, distributors, and retailers. Its codes combine management-system requirements with sector-specific operational controls. |
| SR | Sustained Release: A dosage form engineered to release an ingredient over an extended period. Development must demonstrate predictable release, stability, dose suitability, and resistance to clinically significant food or use effects. |
| T | |
| TACCP | Threat Assessment and Critical Control Points: A systematic approach to identifying and controlling intentional contamination or food-defense threats. It complements controls focused on accidental hazards and economically motivated fraud. |
| TAMC | Total Aerobic Microbial Count: A compendial measure of viable aerobic bacteria in a nonsterile product or ingredient. Results help assess hygiene, process control, preservation, and compliance with microbial limits. |
| TDI | Tolerable Daily Intake: An estimate of the amount of a contaminant that can be consumed daily over a lifetime without appreciable health risk. |
| TEAE | Treatment-Emergent Adverse Event: An unfavorable event that begins or worsens after study treatment starts. It is a standard safety endpoint in clinical evaluations of medicines and supplements. |
| TGA | Therapeutic Goods Administration: Australia’s regulator for medicines and therapeutic goods, including complementary medicines and nonprescription products. It oversees market authorization, manufacturing, advertising, and post-market compliance. |
| THC | Tetrahydrocannabinol: The principal intoxicating cannabinoid in cannabis. Hemp-derived ingredients and finished products require sensitive testing and strict control against jurisdiction-specific concentration limits. |
| THMP | Traditional Herbal Medicinal Product: A herbal medicine eligible for a simplified registration route in the United Kingdom or European frameworks when traditional-use, safety, quality, and other criteria are met. |
| THR | Traditional Herbal Registration: The United Kingdom registration pathway and mark for qualifying traditional herbal medicines. Registration is based on traditional use, quality, and safety rather than full clinical efficacy evidence. |
| TLC | Thin-Layer Chromatography: A planar separation technique used to identify ingredients and compare chemical profiles. It remains common for botanical authentication and screening because it is flexible and relatively economical. |
| TOTOX | Total Oxidation: An index combining primary and secondary oxidation measurements to characterize the overall oxidative condition of oils. It is especially important for omega-3 ingredient and finished-product quality. |
| TSE | Transmissible Spongiform Encephalopathy: A group of fatal prion diseases relevant to sourcing and documenting animal-derived materials. Risk controls consider species, tissue, geographic origin, and manufacturing process. |
| TTC | Threshold of Toxicological Concern: A risk-assessment approach establishing generic human-exposure thresholds for chemicals with limited substance-specific toxicity data, subject to defined exclusions and structural categories. |
| TVC | Total Viable Count: A measure of living microorganisms recoverable under specified test conditions. It is used to assess raw-material hygiene, finished-product quality, and process control. |
| TWI | Tolerable Weekly Intake: The amount of a contaminant that can be consumed weekly over a lifetime without appreciable health risk. Weekly averaging is useful for substances that accumulate in the body. |
| TYMC | Total Yeast and Mold Count: A microbiological test measuring viable yeasts and molds in nonsterile ingredients and products. Results help evaluate sanitation, storage conditions, preservation, and spoilage risk. |
| U | |
| UL | Tolerable Upper Intake Level: The highest average daily nutrient intake unlikely to pose adverse-health risks to nearly all individuals in a defined population. It is critical when setting supplement doses and assessing cumulative intake. |
| USDA | United States Department of Agriculture: The federal department responsible for agricultural policy and the national organic program. Organic dietary supplements must meet applicable production, handling, certification, and labeling requirements. |
| USP | United States Pharmacopeia: An independent scientific organization that establishes public quality standards for medicines, dietary supplements, food ingredients, and excipients. Applicable compendial drug standards are enforceable in the United States. |
| USP–NF | United States Pharmacopeia–National Formulary: The combined compendium containing official monographs, general chapters, tests, and standards for drug substances, dosage forms, excipients, and related materials. |
| UV | Ultraviolet: Electromagnetic radiation with wavelengths shorter than visible light. Its effects are central to sunscreen performance, photostability, packaging protection, and accelerated product degradation. |
| UVA | Ultraviolet A: The longer-wavelength region of ultraviolet radiation associated with photoaging, pigmentation, and skin damage. Broad-spectrum sunscreens must provide meaningful protection across this region. |
| UVAPF | Ultraviolet A Protection Factor: A numerical measure of sunscreen protection against ultraviolet A exposure. Applicable test methods and labeling conventions vary by jurisdiction. |
| UVB | Ultraviolet B: The shorter-wavelength ultraviolet region primarily responsible for sunburn and a major contributor to skin cancer risk. It is the principal radiation range reflected in sun-protection-factor testing. |
| V | |
| VACCP | Vulnerability Assessment and Critical Control Points: A systematic approach to identifying and controlling food-fraud vulnerabilities. It is particularly relevant to high-value botanicals, specialty oils, extracts, and other ingredients susceptible to substitution or dilution. |
| VAI | Voluntary Action Indicated: A U.S. Food and Drug Administration inspection classification indicating objectionable conditions that do not currently warrant formal regulatory action but should be corrected voluntarily. |
| VMS | Vitamins, Minerals, and Supplements: A retail and market-analysis category covering nutritional supplements across mass, pharmacy, specialty, practitioner, and digital channels. |
| W | |
| WADA | World Anti-Doping Agency: The international organization responsible for the World Anti-Doping Code and prohibited-substance list. Sports-supplement brands use these requirements to manage ingredient and contamination risks for tested athletes. |
| WHO | World Health Organization: The United Nations agency responsible for international public health. Its guidance influences self-care, traditional medicines, nutrition, pharmaceutical quality, safety monitoring, and essential medicines policy. |
| w/v | Weight per Volume: A concentration expression stating the mass of a substance in a specified volume of product, commonly used for liquids, solutions, and suspensions. |
| w/w | Weight per Weight: A concentration expression stating the mass of a substance relative to the total mass of a formulation, commonly used for creams, ointments, gels, and solid mixtures. |