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Isostearyl Isostearate

ISOSTEARYL ISOSTEARATE

Data confidence:High
Malassezia Trigger

Can feed malassezia yeast, potentially worsening malassezia-related skin conditions. Avoid if you are malassezia-sensitive.

Function

Emollient, Skin Conditioning Agent

EWG Safety Score

3/10Moderate concern

About this ingredient

Isostearyl isostearate is a synthetic ester derived from isostearic acid and isostearyl alcohol. It functions as a lightweight emollient and skin conditioning agent that provides lubricity and a silky feel to cosmetic formulations while improving spreadability and reducing greasiness. It is commonly used in sunscreens, moisturizers, and other personal care products for its excellent sensory profile and skin compatibility.

Found in 2+ sunscreens