Emulsifier

Peg-15 Butylene Glycol Diisostearate

INCI: PEG-15 BUTYLENE GLYCOL DIISOSTEARATE

Reviewed by Kate · Last updated 18 Aug 2026

What Is Peg-15 Butylene Glycol Diisostearate?

PEG-15 Butylene Glycol Diisostearate is the polyethylene glycol derivative of the diester of Butylene Glycol and Isostearic Acid containing an average of 15 moles of ethylene oxide.

Its declared cosmetic functions are emulsifying and surfactant.

Source: European Commission CosIng inventory.

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