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Researched by Helena DeMaria-Williams

Formula IngredientEmollient

Stearyl Alcohol

INCI: Stearyl Alcohol

Stearyl alcohol is a white to light yellowish fatty alcohol (not a drying alcohol) with 18 carbon atoms. It works as an emollient, emulsion stabiliser, and viscosity controller in oil-in-water formulations. It is frequently combined with cetyl alcohol to form cetearyl alcohol and helps give products a smooth, rich texture.

Category

Emollient

Irritation Risk

Low

Skin Types

all skin types, dry skin, normal skin, sensitive skin

What does this do in a formula?

skin softening, emulsion stabilisation, viscosity control, foam boosting, texture enhancement

Is Stearyl Alcohol safe? Key considerations

Can Stearyl Alcohol cause irritation?

Low Risk

Irritancy rating of 2 (low). Well tolerated by most skin types. This is a fatty alcohol, not a drying alcohol like denatured alcohol. No EU CosIng Annex restrictions.

Does Stearyl Alcohol increase sun sensitivity?

No Risk

Does not increase photosensitivity.

Is Stearyl Alcohol safe during pregnancy?

Safe

Widely used cosmetic emollient with no documented reproductive or developmental concerns.

How does Stearyl Alcohol work?

Stearyl alcohol is a white to light yellowish fatty alcohol (not a drying alcohol) with 18 carbon atoms. It works as an emollient, emulsion stabiliser, and viscosity controller in oil-in-water formulations. It is frequently combined with cetyl alcohol to form cetearyl alcohol and helps give products a smooth, rich texture.

Individuals with known allergy to fatty alcohols (rare) should review the considerations above before use.