Polyglutamic Acid (PGA): K-beauty ingredient guide 폴리글루탐산
⏱ 1 min read
⚡ Quick answer: A fermentation-derived humectant that originates in natto, the Japanese fermented soybean. It is bigger than hyaluronic acid, so it behaves more like a moisture-holding film than a deep hydrator — which is why the two are often stacked.
A fermentation-derived humectant that originates in natto, the Japanese fermented soybean. It is bigger than hyaluronic acid, so it behaves more like a moisture-holding film than a deep hydrator — which is why the two are often stacked.
What Polyglutamic Acid (PGA) does for your skin
- A large humectant that sits on the surface and holds water there
- Layers well over hyaluronic acid for a plumper look
Best for
🌌 Polyglutamic Acid (PGA) compatibility map
Tap any ingredient to open its guide. ━ pairs well · ┈ use with care.
🤰 Pregnancy: Generally considered fine — confirm with your doctor. · ⏰ Use: BOTH
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✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-23.
General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.