How we scored it
Where it comes from
Polyurethane-2 is built entirely from petrochemical building blocks: petroleum-derived glycols and adipic acid condensed with a hydrogenated diphenylmethane diisocyanate. There is no alternative natural-feedstock route in commercial use.
In plain English
A film-forming polymer used in hair and nail products to leave a flexible coating. It's built entirely from lab-made building blocks including diisocyanates and glycols, with no plant or mineral content.
CosIng definition: Polyurethane-2 is a copolymer of hexylene glycol, neopentyl glycol, adipic acid, saturated methylene diphenyldiisocyanate and dimethylolpropanoic 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-2. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POLYURETHANE-2. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYURETHANE-2