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Sodium Polyglutamate

What Sodium Polyglutamate is & what it does

A fermentation-derived humectant that binds water strongly and forms a hydrating film, often more effectively than hyaluronic acid by weight. It leaves skin plump and smooth.

What does Sodium Polyglutamate do in skincare?

Sodium Polyglutamate is the salt form of polyglutamic acid, a polymer of glutamic acid used as a humectant and film-former. It attracts and helps hold water at the skin surface, supporting a hydrated, smooth feel. It is often used to add a soft, conditioned finish to a product.

Is Sodium Polyglutamate safe?

Sodium Polyglutamate is commonly used as a hydrating film-forming ingredient and is generally regarded as well tolerated in topical products. It is typically used at modest concentrations. Anyone with specific sensitivities should review the full ingredient list.

Is Sodium Polyglutamate vegan?

It is usually produced by microbial fermentation rather than from animal sources, so it is generally considered suitable for vegan formulas. The vegan status of a finished product still depends on its other ingredients.

Sunscreens with Sodium Polyglutamate

We rate 6 sunscreens that contain it:

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