How we scored it
Where it comes from
Made by copolymerising petrochemical methyl vinyl ether with maleic anhydride, then esterifying part of the acid groups with isopropanol. No natural feedstock is used at any step.
In plain English
A synthetic film-forming and thickening polymer used in hairsprays and lotions, built entirely from petroleum-derived chemicals. It has no natural content.
CosIng definition: 2-Butenedioic acid (Z)-, polymer with methoxyethene, 1-methylethyl ester
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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.
- 2ISOPROPYL ESTER OF PVM/MA COPOLYMER. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3ISOPROPYL ESTER OF PVM/MA COPOLYMER. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ISOPROPYL%20ESTER%20OF%20PVM/MA%20COPOLYMER