How we scored it
Where it comes from
Polyester-1 is a petrochemical copolymer combining acrylamide, glycol, isophthalic acid/sulfonate and acrylic/methacrylic ester monomers. All are conventional synthetic film-former chemistry.
In plain English
A film-forming polymer for hair and nail products, built from synthetic acrylamide, glycols, isophthalic acid and acrylic/methacrylic ester monomers — entirely petrochemical.
CosIng definition: Copolymer of t-butylacrylamide, cyclohexane dimethanol, diethylene glycol, isophthalic acid sodium isophthalic acid sulfonate and one or more monomers of acrylic acid, methacrylic acid or one of their simple esters
Natural alternatives with the same function
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References
- 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.
- 2POLYESTER-1. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POLYESTER-1. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYESTER-1