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Researched by Helena DeMaria-Williams

Formula IngredientHumectant

Hydrolyzed Hyaluronic Acid

INCI: Hydrolyzed Hyaluronic Acid

Hydrolyzed hyaluronic acid is a low molecular weight form of hyaluronic acid that has been broken down through acid, enzyme, or other hydrolysis methods into smaller fragments. Because of its reduced molecular size (typically 10–300 kDa compared to 1,000+ kDa for standard HA), it penetrates the skin more effectively, delivering deep and long-lasting hydration to lower layers of the epidermis rather than sitting on the surface.

Category

Humectant

Irritation Risk

Low

Skin Types

all skin types, dry, dehydrated, sensitive, acne-prone, ageing skin

What does this do in a formula?

deep hydration, improved skin penetration, reduced fine lines and wrinkles, skin barrier support, skin repair, soothing for sensitive skin

Is Hydrolyzed Hyaluronic Acid safe? Key considerations

Can Hydrolyzed Hyaluronic Acid cause irritation?

Low Risk

Well tolerated by most skin types, including sensitive skin. Ultra-low molecular weight fragments (below 50 kDa) have been noted in some research to trigger pro-inflammatory signalling, but at typical cosmetic concentrations this is not considered a clinical concern for most users.

Does Hydrolyzed Hyaluronic Acid increase sun sensitivity?

No Risk

Hydrolyzed hyaluronic acid does not increase photosensitivity. No special UV precautions are required.

Is Hydrolyzed Hyaluronic Acid safe during pregnancy?

Safe

Hyaluronic acid and its hydrolysed forms are naturally occurring in the body and are considered safe for topical use during pregnancy. No concerns have been raised by dermatological or toxicological sources.

How does Hydrolyzed Hyaluronic Acid work?

Hydrolyzed hyaluronic acid is a low molecular weight form of hyaluronic acid that has been broken down through acid, enzyme, or other hydrolysis methods into smaller fragments. Because of its reduced molecular size (typically 10–300 kDa compared to 1,000+ kDa for standard HA), it penetrates the skin more effectively, delivering deep and long-lasting hydration to lower layers of the epidermis rather than sitting on the surface.

Individuals with known allergy to hyaluronic acid (extremely rare) should review the considerations above before use.

Which products contain Hydrolyzed Hyaluronic Acid?

Shop products that contain Hydrolyzed Hyaluronic Acid