How we scored it
CosIng gives no monomer list for Polyurethane-43; cosmetic polyurethanes without a stated natural polyol are built from petrochemical diisocyanates and polyols → 0.0 (estimate).
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
Petrochemical diisocyanate and polyol polyurethane (composition not published).
In plain English
A synthetic film-forming polymer used to create a flexible coating on skin, hair or nails; its exact building blocks aren't specified by the supplier.
CosIng definition: Polyurethane-43 is the polymer that conforms generally to the formula:(structure)
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-43. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POLYURETHANE-43. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYURETHANE-43