How we scored it
Where it comes from
Built from petrochemical adipic acid and 1,4-butanediol reacted with diphenylmethane diisocyanate (MDI), branched with trimethylolpropane. No natural-origin commercial route exists.
In plain English
A film-forming synthetic polymer used to create a flexible coating in products such as nail polish or mascara. All of its ingredients are derived from petroleum.
CosIng definition: Polyurethane-23 is a copolymer of adipic acid, 1,4 butanediol, diphenylmethane diisocyanate, and trimethylolpropane
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.
- 2POLYURETHANE-23. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POLYURETHANE-23. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYURETHANE-23