One of the most exciting modern humectants, often paired with hyaluronic acid to provide complementary hydration.
Clinical evidence
Not yet rated
Effectiveness (provisional)
5 out of 5
Typical concentration
Usually below 2%.
Suitable for
All skin types.
How often
—
Primary benefits
Intense hydration
Reduces water loss
Improves skin elasticity
Smooths fine lines
What it does
Polyglutamic Acid is a naturally occurring polymer produced through the fermentation of soybeans. It forms a lightweight film on the skin that reduces moisture loss while attracting water.
Use with caution
No specific layering warnings recorded.
Pregnancy and breastfeeding
Not assessed. Speak to your healthcare provider.
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