Simplest NMF amino acid – a humectant and pH buffer. Pregnancy-safe.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
NMF amino acid. Humectant with confirmed role in hydration.
Glycine is the simplest amino acid and a NMF component. INCI: Glycine. Supports stratum corneum hydration, serves as a pH buffer and is part of glutathione (an antioxidant). Use levels run from 0.5 to 3%. Pregnancy-safe.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
Glycine is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Glycine suits: normal, dry, combination, oily, sensitive.
Simplest NMF amino acid – a humectant and pH buffer.
On the Fulton scale 0/5 – non-comedogenic. For acne-prone skin, a rating of 3 or higher suggests choosing an alternative.
The INCI name is Glycine. It may also appear as: Aminoacetic Acid, глицин.
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