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
- Essentiels Collagène Matrix Candens Homeostasis, poudre, withdrawn from the market
- FLEX PROTECT Laboratoires SYNActifs, gélule, withdrawn from the market
- FOST PRINT PLUS flacon, withdrawn from the market
- Focus Flow ActiThea, poudre, flavour passion, withdrawn from the market
- GH TURBO NIGHT Trec Nutrition, capsule, withdrawn from the market
- GH UP Trec Nutrition, capsule, withdrawn from the market
- GLOW FLOW ActiThea, poudre, flavour hibiscus - fruits rouges - fleur de sureau, withdrawn from the market
- GLUTA BCAA´S ZERO 8.1.1 IO GENIX, poudre, flavour tutifrutti, withdrawn from the market
- GLUTA BCAA´S ZERO 8.1.1 IO GENIX, poudre, flavour mojito, withdrawn from the market
- GLUTA BCAA´S ZERO 8.1.1 IO GENIX, poudre, flavour peach, withdrawn from the market
- GLUTA BCAA´S ZERO 8.1.1 IO GENIX NUTRITION, poudre, flavour pomme vert, withdrawn from the market
- GLUTA BCAA´S ZERO 8.1.1 IO GENIX NUTRITION, poudre, flavour cola, withdrawn from the market
- GLUTATHION INTRACEL OK la forme !, gélule, withdrawn from the market
- GLYCINE gélule, withdrawn from the market
- GLYCINE NUTRIMSUCLE, poudre, flavour nature, withdrawn from the market
- GLYCINE NUTRIMSUCLE, gélule, flavour nature, withdrawn from the market
- GLYCINE NOW FOODS, gélule, withdrawn from the market
- Germag Lorica, comprimé, withdrawn from the market
- Germag Lorica, gélule, withdrawn from the market
- Germag Lorica, sachet, flavour abricot, withdrawn from the market
- Glutadial Vitadial, gélule, withdrawn from the market
- Glutathion gélule, withdrawn from the market
- Glycine PROZIS, poudre, flavour neutre, withdrawn from the market
- Glycine poudre, withdrawn from the market
- HYDRO-S Circulation Serie Radieuse, compte-gouttes, withdrawn from the market
- HYDRO-S Foie Serie Radieuse, compte-gouttes, withdrawn from the market
- HYDRO-S Peau Serie Radieuse, compte-gouttes, withdrawn from the market
- Hépato process - matin poudre, withdrawn from the market
- Hépato process - soir poudre, withdrawn from the market
- Hépato process - soir poudre, withdrawn from the market
- IRON PERFORMANCE ERIC FAVE SPORT, gélule, withdrawn from the market
- IRON PERFORMANCE ERIC FAVE SPORT, gélule, withdrawn from the market
- IRON ULTRA FAT BURNER ERIC FAVRE SPORT, gélule, withdrawn from the market
- Iron ultra fat burner gélule, withdrawn from the market
- Liberdigest COMPLEXE HEPATO-PROTECTEUR comprimé, withdrawn from the market
- LoriCalm Lorica, autre : poudre orodispersible, flavour fruit rouge menthe, withdrawn from the market
- LoriSport LORICA, poudre, flavour abricot, withdrawn from the market
- Melatonin + L-Tryptophan Gummies Sugar Free Vitaldin, gomme, flavour saveur de pêche, withdrawn from the market
- Melatonin + L-Tryptophan Gummies Sugar Free Vitaldin, gomme, flavour saveur de fruits tropicaux, withdrawn from the market
- Melatonin + L-Tryptophan Gummies Sugar Free Vitaldin, gomme, flavour saveur de mûre, withdrawn from the market
- Melatonin + L-Tryptophan Gummies Sugar Free Vitaldin, gomme, flavour saveur de mûre, withdrawn from the market
- Myriaflor LORICA, bâton / batônnet / stick, flavour abricot, withdrawn from the market
- Myriaflor LORICA, sachet, flavour agrume, withdrawn from the market
- Myriaflor LORICA, sachet, flavour agrume, withdrawn from the market
- Myriaflor LORICA, sachet, flavour abricot, withdrawn from the market
- Myriaflor LORICA, bâton / batônnet / stick, flavour abricot, withdrawn from the market
- Myriaflor LORICA, sachet, withdrawn from the market
- Myriaflor G LORICA, gélule, withdrawn from the market
- Myriaflor G LORICA, gélule, withdrawn from the market
- Myriaflor G LORICA, gélule, withdrawn from the market
- Myriaflor G LORICA, gélule, withdrawn from the market
- Myriaflor G LORICA, gélule, withdrawn from the market
- Myriaflor pot LORICA, poudre, flavour arôme naturel, withdrawn from the market
- N1 NUTREND, poudre, flavour framboise bleue, withdrawn from the market
- N1 NUTREND, poudre, flavour cassis, withdrawn from the market
- Natur' Detox gélule, withdrawn from the market
- NutriProtect Detox poudre, withdrawn from the market
- Ocudyne gélule, withdrawn from the market
- Ongles et cheveux gélule, withdrawn from the market
- Ostéo2vie poudre, withdrawn from the market
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