Emulsifier

Butylene Glycol Sesquiisostearate

INCI: BUTYLENE GLYCOL SESQUIISOSTEARATE

Reviewed by Rosie · Last updated 18 Aug 2026

What Is Butylene Glycol Sesquiisostearate?

Butylene Glycol Sesquiisostearate is a mixture of mono- and diesters of Butylene Glycol and Isostearic Acid.

Its declared cosmetic functions are emollient, emulsifying, skin conditioning and surfactant.

Source: European Commission CosIng inventory.

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