Database/Film Forming/Styrene/Acrylates Copolymer
100% petroleum · ISO 16128

Is Styrene/Acrylates Copolymer natural?

No. Both styrene and the acrylate/methacrylate monomers used to build this film-forming polymer are synthesized from petrochemical feedstocks.

INCI nameStyrene/Acrylates Copolymer
CAS27306-39-4
FunctionFilm Forming · Opacifying
FeedstockThis copolymer is made by polymerizing styrene, derived…

How we scored it

Styrene (from petrochemical benzene/ethylene) copolymerized with acrylic/methacrylic acid esters (petrochemical); no natural fragments in either monomer.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

This copolymer is made by polymerizing styrene, derived from petrochemical benzene and ethylene, with acrylic or methacrylic acid esters, also petrochemical. It has no natural or plant-derived content.

In plain English

A film-forming polymer used in products like mascara and nail polish to leave a flexible coating on skin, hair, or nails. It's built entirely from petrochemical starting materials, styrene and acrylic esters.

CosIng definition: Styrene/Acrylates Copolymer is a polymer of Styrene and a monomer consisting of Acrylic Acid, Methacrylic Acid or one of their simple esters.

Natural alternatives with the same function

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2STYRENE/ACRYLATES COPOLYMER. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  3. 3STYRENE/ACRYLATES COPOLYMER. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=STYRENE/ACRYLATES%20COPOLYMER