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Glutathione
Glutathione
Low concern
FDA-recognized GRAS (FEMA 3559) as a flavoring ingredient. EFSA approved a Yamasa reduced-glutathione novel-food authorization.
Found in
13 products
What it is
Tripeptide of glutamate, cysteine, and glycine; major endogenous antioxidant produced by all human cells.
Antioxidant; flavor enhancer (umami/kokumi); nutritional supplement.
Why it's flagged
- Oral bioavailability low
- Skin-lightening efficacy not proven
What regulators actually say
"The Panel concludes that the novel food, reduced L-glutathione, is safe under the proposed conditions of use."
Regulatory status
United States — FDA
GRAS as flavor (FEMA 3559); permitted in dietary supplements
European Union — EFSA
Authorized novel food (reduced L-glutathione, EU 2021/900)
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