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Humectants

Polyglutamic Acid

聚谷氨酸

Also known as: PGA, γ-PGA

What it does

  • Holds 4-5x more water than HA
  • Prevents HA breakdown
  • Forms hydrating film

Evidence

Moderate evidence

Studies show superior water retention compared to HA. Inhibits hyaluronidase.

Skin types

Well suited for: All Dry Dehydrated

Excellent humectant. Can be layered with HA.

Helps with

Dryness Dehydration
Irritation potential
Very Low
Comedogenic rating
0 / 5
Pregnancy
Generally considered safe during pregnancy

Safe.

Good to know

The 'next generation' humectant. Actually inhibits the enzyme that breaks down HA in skin.

Related ingredients

Sodium Hyaluronate Glycerin Sodium PCA Hydrolyzed Hyaluronic Acid Butylene Glycol Propanediol

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Educational information only — not medical advice. Always patch test and consult a dermatologist for skin concerns.