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Butylene/Ethylene/Styrene Copolymer
Butylene/Ethylene/Styrene Copolymer
A synthetic elastomeric polymer used to thicken oils and waxes and give body to anhydrous formulas.
What it does
Butylene/Ethylene/Styrene Copolymer is a rubbery synthetic polymer that dissolves in oils and waxes. It thickens the oil phase, helps bind a stick or balm together, and gives a smooth, cushioned feel. It is a texture-and-structure ingredient rather than a skin active.
This page is public and indexed on purpose (unlike profiles and drops, which are unlisted) — it’s the citation behind shared ingredient cards, and it should be findable.
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