Glycine in food supplements
1,122 supplements declared in France contain Glycine as a substance or active ingredient.
Compl'Alim declarations. Compl'Alim, food supplement declarations (France), retrieved 23 October 2026.
What we know about this ingredient
Uses
AS A BUFFERING AGENT; IN SYNTHESES
MEDICATION: DIETARY SUPPLEMENT FOR BODY BUILDING PROTEINS; NUTRIENT; INTRAVENOUS FEEDING; IRRIGATING FLUID IN TRANSURETHRAL REMOVAL OF PROSTATE; BUFFERING COMPOUND IN ANTACID PREPN
Organic synthesis, nutrient, biochemical research, buffering agent, chicken-feed additive, reduces bitter taste of saccharin, retards rancidity in animal and vegetable fats.
PubChem : Hazardous Substances Data Bank (HSDB) · 2026-10-29 · Patty, F. (ed.). Industrial Hygiene and Toxicology: Volume II: Toxicology. 2nd ed. New York: Interscience Publishers, 1963., p. 1804; SRI; Lewis, R.J., Sr (Ed.). Hawley's Condensed Chemical Dictionary. 13th ed. New York, NY: John Wiley & Sons, Inc. 1997., p. 545.
Use classification
EPA Safer Chemical Functional Use Classes -> Processing Aids and Additives
Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern
Cosmetics -> Hair conditioning; Skin conditioning; Antistatic; Buffering
Plant-derived material.
Basis: INCIInternational name of cosmetic ingredients: the one printed on the pack. name of a plant or plant part.
CosIng, inventory of cosmetic ingredients (INCI names, CAS, EC, functions), retrieved 21 October 2026.
Natural occurrence recorded in Wikidata (LOTUS database): 125 taxa; examples: Morchella angusticeps, Morchella crassipes, Allium sativum, Citrus grandis, Citrus medica.
Wikidata: names of substances in six languages and taxa in which they occur (largely from the LOTUS database), retrieved 23 October 2026.
Manufacturing
FROM HYDROBROMIC ACID PLUS METHYLENEAMINOACETONITRILE: CLARKE, TAYLOR, ORG SYNTH, 4, 31 (1925); FROM CHLOROACETIC ACID PLUS AMMONIA: ORTEN, HILL, ORG SYNTH, COLL VOL I, 2ND EDITION, 300 (1941)...
ISOLATION FROM HYDROLYSIS PRODUCTS OF GELATIN: KINGSTON, SCHRYVER, BIOCHEM J, 18, 1071 (1924); BY HYDROLYSIS OF CATTLE LIGAMENTS: US PATENT 2,098,923 (1938 TO ARMOUR & CO).
ISOLATION FROM SILK FIBROIN, GELATIN, AND SUGAR CANE; REACTION OF CHLOROACETIC ACID AND AMMONIA
ISOLATION FROM SILK FIBROIN: MOORE, STEIN, J BIOL CHEM, 150, 113 (1943).
Appearance
MONOCLINIC OR TRIGONAL PRISMS FROM DILUTE ALCOHOL
Monoclinic prisms from alc
White crystals
Glycine appears as white crystals. (NTP, 1992)
PubChem : Hazardous Substances Data Bank (HSDB) · 2026-10-29 · Weast, R.C. (ed.). Handbook of Chemistry and Physics. 60th ed. Boca Raton, Florida: CRC Press Inc., 1979., p. C-321; Budavari, S. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 1996., p. 765; Lewis, R.J., Sr (Ed.). Hawley's Condensed Chemical Dictionary. 13th ed. New York, NY: John Wiley & Sons, Inc. 1997., p. 545.
PubChem : CAMEO Chemicals · 2026-10-29 · National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina..
Odour described
Odorless
Taste described
Sweet
Associated research
ClinicalTrials.gov · A trial is not proof: it tests a hypothesis.
- NCT07285135 : Dietary Glycine Supplementation in Metabolic Dysfunction-associated Steatotic Liver Disease
RECRUITING · NA · Metabolic Dysfunction Associated Fatty Liver Disease · 2026-10-27 · Glycine
- NCT05799521 : A Nasal Treatment for COVID-19
ACTIVE_NOT_RECRUITING · PHASE2 · COVID-19, Healthy · 2026-05-28 · Optate (synonym declared in the registry)
- NCT03493178 : Glutathione in Mild Cognitive Impairment
ACTIVE_NOT_RECRUITING · EARLY_PHASE1 · Mild Cognitive Impairment · 2026-09-04 · Glycine
2026-11-01
Other names: glycine zwitterion (English), Glycin (German), glicina (Spanish), glicina (Italian), glicina (Portuguese).
Wikidata: names of substances in six languages and taxa in which they occur (largely from the LOTUS database), retrieved 23 October 2026.
Same substance in cosmetics: GLYCINE.
In plain words
À quoi il sert, selon les fabricants
Objectifs les plus souvent annoncés pour les compléments qui en contiennent (Glycine) : sport (224 produits), peau (137 produits), articulations (121 produits), sommeil (113 produits), antioxydant (79 produits).
Ce sont les objectifs déclarés par les fabricants à l'administration, pas des effets démontrés. Sur l'emballage, seules les allégations de santé autorisées par l'Union peuvent être écrites.
Compl'Alim, food supplement declarations (France), retrieved 23 October 2026.
What the registers say, country by country
Each line repeats what an official register says on the date it was consulted. Not being in a register means neither allowed nor banned.
Compl'Alim ingredient list (France): listed.
Compl'Alim, reference list of ingredients, retrieved 21 October 2026.
Canada, licensed natural health products (LNHPD): 7 products.
Licensed Natural Health Products Database (LNHPD), Health Canada: licensed products, ingredients, doses, uses and risks, retrieved 27 October 2026.
Contains information licensed under the Open Government Licence – Canada (Health Canada, LNHPD)
Licence du gouvernement ouvert – Canada 2.0 (OGL-Canada 2.0)
United States, supplement labels (DSLD; supplements need no prior approval): 1052 products.
Dietary Supplement Label Database (DSLD), US National Institutes of Health: current and off-market labels, retrieved 27 October 2026.
Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (CC0); US market labels.
Malaysia, registered products: 9 products.
NPRA, Malaysian pharmaceutical products register, retrieved 27 October 2026.
Ministère de la santé de Malaisie / NPRA, Pharmaceutical Products, CC BY 4.0
Poland, notified supplements: 1 product.
GIS, products notified in Poland, retrieved 27 October 2026.
Główny Inspektorat Sanitarny (GIS), Rejestr produktów objętych powiadomieniem
Taiwan, registered products: 60 products.
TFDA, Taiwan tablets, capsules and medical nutrition registers, retrieved 27 October 2026.
Taiwan Food and Drug Administration (TFDA), Open Government Data License, version 1.0
Declared daily quantities
| Unit | Products | Median | Minimum | Maximum |
|---|---|---|---|---|
| mg | 235 | 500 | 2 | 15,000 |
Calculated from Compl'Alim declarations that provide a quantity. These are quantities declared by manufacturers, not measurements, and preparation is not distinguished (powder, extract of varying concentration): differences between products can be very large.
Products
- SAFRAN SOLARAY, gélule, declared in 2025
- SECUENCIAL PREMIUM NUTRYTEC, poudre, flavour fruits rouges, declared in 2016
- SECUENCIAL PREMIUM NUTRYTEC, poudre, flavour chocolat, declared in 2016
- SILHOUETTE BRÛLE-GRAISSE ampoule, declared in 2020
- SLEEP & RELAX YOUTHBITES, gélule, declared in 2024
- SLEEP CARE HSN, poudre, declared in 2024
- SLEEP POWDER poudre, flavour citron vert, declared in 2025
- SLEEP+ COMPLEX ETNA, sachet, declared in 2026
- SLEEPCARE - SLEEP'N RESTORE COMPLEX HSN, capsule, declared in 2021
- SOMMEIL Prescription Nature, sachet, declared in 2025
- SOMMEIL CHRONO GRANIONS, comprimé, declared in 2024
- SOMMEIL ULTRA LAVILAB, bâton / batônnet / stick, declared in 2020
- SOMMEIL+ LE LAB DE L'ENDO, gélule, declared in 2025
- SOPROST CFN, gélule, declared in 2026
- SRA Détox NATURAMedicatrix, poudre, declared in 2026
- SRA Minéral NATURAMedicatrix, poudre, declared in 2026
- STICK HYDRATATION ET ENERGIE AVEC SUCRE SYBELLE, bâton / batônnet / stick, declared in 2026
- STICK HYDRATATION ET ENERGIE SANS SUCRE SYBELLE, bâton / batônnet / stick, flavour citron, declared in 2026
- SUBLIMATEUR DE COLLAGèNE poudre, declared in 2024
- SUBLIME PEAU ANTI-ÂGE comprimé, declared in 2024
- SUNDAY ESSENTIALS MULTI-AMINOS PLUS gélule, declared in 2026
- SUPER GLYCINE Superphysique Nutrition, poudre, declared in 2023
- SYNERPHYT N°4 CALME ET SOMMEIL SYNPHONAT, flacon, declared in 2023
- SYNSERA LABS COLLAGÈNE + TCM + GLYCINE SYNSERA LABS, poudre, flavour vanille, declared in 2026
- SYNSERA LABS COLLAGÈNE + TCM + GLYCINE SYNSERA LABS, poudre, flavour moka, declared in 2026
- Santé osseuse poudre, declared in 2026
- Satiéa Hormonae, sachet, flavour cerise, declared in 2026
- She+ Mature & Fit comprimé, declared in 2021
- SiS Rest & Recover gélule, declared in 2025
- Skin Glow + poudre, declared in 2026
- Sleep Zero Nutrition, poudre, flavour citron, declared in 2025
- Sleep & Relax – GymBeam - Baies sauvages - 225g GymBeam, poudre, flavour baies sauvages, declared in 2026
- Sleep recovery gélule, declared in 2026
- Slim Zen gélule, declared in 2020
- Solutions Relax & Calm Applied Nutrition, gélule, declared in 2026
- Solutions Sleep Support Applied Nutrition, gélule, declared in 2026
- Sommeil APEX, poudre, flavour framboise, declared in 2026
- Sommeil gélule, declared in 2026
- Sommeil Réparateur JOVENCIA, comprimé, declared in 2021
- Sommeil Triple Action comprimé, declared in 2020
- Soutien au Collagène Végétalien Nutrality, autre : liquide prêt à boire, flavour baies mélangées, declared in 2023
- Spray Mélatonine 1,9 mg VITAVEA - Laboratoires Yves Ponroy, spray, declared in 2025
- SteroBalance poudre, flavour orange, declared in 2018
- Superior Shot High End Nutrition, poudre, flavour mango, declared in 2022
- TAYGÈTE autre : comprimés pelliculés sécables et gélules, declared in 2018
- TESTO GH XTREME SUPERSET NUTRITION, poudre, flavour blackberry, declared in 2025
- TESTO GH XTREME SUPERSET NUTRITION, poudre, flavour citron, declared in 2023
- TESTO GH XTREME (300G) ORANGE SUPERSET NUTRITION, poudre, flavour orange, declared in 2024
- TGH Scitec Nutrition, poudre, flavour cerise - vanille, declared in 2023
- THE AMINO 6000 THE nutrition, comprimé, declared in 2016
- THERMO NIGHT BURN SMRT LABS, flacon, declared in 2023
- THERMOBOOSTER SHOT Nutrend, autre : shot, flavour raisin, declared in 2024
- TN NATURALS - GLICINA TSUNAMI NUTRITION, comprimé, declared in 2026
- TN PHARMA - CAPELLI-UNGHIE comprimé, declared in 2025
- TN PHARMA - SLEEP AID comprimé, declared in 2026
- TOP SKIN ULTIMATE-WELLNESS LINE, poudre, flavour orange, declared in 2018
- TRIPROX NUTRYTEC, poudre, flavour chocolat et noissetes, declared in 2016
- TRIPROX NUTRYTEC, poudre, flavour yaourt à la fraise, declared in 2016
- TSUNAMI NUTRITION - AMINO ESSENTIAL comprimé, declared in 2024
- TSUNAMI NUTRITION - RECOVERY 2.0 TSUNAMI NUTRITION, poudre, flavour fruits rouges, declared in 2026
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