Ingredient glossary
Polyglutamic Acid
INCI: Polyglutamic Acid · Also: PGA, Gamma Polyglutamic Acid
Promising, not proven
Does Polyglutamic Acid clash with what you already use? Check it →Early signs are interesting, but the proof is not in yet. Worth watching, not worth a premium.
What it does
- hydration
- barrier support
- texture
emerging evidenceEarly cosmetic trials with hyaluronic acid combinations show sustained increases in hydration firmness and elasticity for up to eight weeks yet studies specifically isolating polyglutamic acid remain few.
On a label: usually effective at 0.1-3%.
Who it's for, and who should skip it
Tends to suit
- dry
- dehydrated
- normal
- combo
- sensitive
Approach with care
No specific group flagged to avoid it.
- Clogs poresLow
- Irritation riskLow
Plays well with
- hyaluronic acid
- humectants
- ceramides
This, for every label you own
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Educational information about a cosmetic ingredient, not medical advice.