Emulsifier

Polysorbate 40

Reviewed by Rosie · Last updated 18 Aug 2026

Exfoliants ingredient

What Is Polysorbate 40?

Polysorbate 40 is a cosmetic ingredient. It is grouped in the Exfoliants category on this site.

There is limited independent published research on its topical use, so this entry describes what the ingredient is rather than making specific performance claims.

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Part of a family

Polysorbate 40 is a variant of PEG-80 Sorbitan Palmitate, the form you will most often see on an ingredients list.

A gentle emulsifier that helps bind water and oil in skincare formulations

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