How we scored it
Where it comes from
Synthesised from petrochemical diols, a diacid, and isocyanate/diamine monomers to form a polyurethane dispersion. No natural or bio-based route is commercially significant for these monomers.
In plain English
A synthetic film-forming polymer built from petrochemical diols, a diacid, and diisocyanate/diamine building blocks. Used in hair and nail products to form a flexible, glossy coating.
CosIng definition: Polyurethane-48 is a copolymer of hexanediol, neopentyl glycol, adipic acid, isophorone diisocyanate, isophorone diamine and sodium N-(2-aminoethyl)-3-aminoethanesulfonic acid monomers.
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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.
- 2POLYURETHANE-48. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POLYURETHANE-48. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYURETHANE-48