Sodium Polyglutamate is a naturally occurring polymer derived from fermented soybeans. It is a powerful humectant, meaning it attracts and holds moisture in the skin, similar to hyaluronic acid but with potentially greater capacity. This ingredient helps to keep the skin hydrated, plump, and smooth, contributing to a healthy skin barrier.
NoneHumectantVeganEvidence: Medium
BenefitGood 2.8 / 4
Hydration
Texture
Soothing
RiskVery low 0 / 4
Rated by SpottyLabs' ingredient methodology, independent of brands.
What it helps with
Intense hydration
Improves skin elasticity
Supports skin barrier
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Sodium Polyglutamate is a water-soluble polymer made from fermented soybeans. It is known for its exceptional ability to attract and retain moisture, making it a potent hydrating ingredient in skincare.
How does Sodium Polyglutamate compare to Hyaluronic Acid?
Both are excellent humectants. Sodium Polyglutamate is often cited as having a higher water-holding capacity than hyaluronic acid, meaning it can potentially provide even more intense and longer-lasting hydration to the skin.
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