A fatty alcohol emollient. It softens skin, stabilizes the emulsion and gives a smooth texture. Well tolerated.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
A functional fatty alcohol. Safe; fatty alcohols do not dry skin.
Isostearyl Alcohol is a branched fatty alcohol. INCI: Isostearyl Alcohol. In a formula it works as an emollient, co-emulsifier, and texture modifier: it softens skin, gives an enveloping slip, and helps stabilize the emulsion. It is not a drying alcohol but a fatty softening component. Its branched structure makes it liquid and oxidation-stable. It is a functional sensory component, not a skincare active. Pregnancy safety. Systemic absorption through intact skin is low and there is no evidence of harm. It can be used during pregnancy and lactation. Tolerance. Irritation and allergen potential are low, suitable for dry and sensitive skin.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Isostearyl Alcohol is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Isostearyl Alcohol suits: normal, dry, combination, oily, sensitive.
A fatty alcohol emollient.
On the Fulton scale 1/5 – very low comedogenicity. For acne-prone skin, a rating of 3 or higher suggests choosing an alternative.
The INCI name is Isostearyl Alcohol. It may also appear as: Изостеариловый спирт.
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