How we scored it
Where it comes from
Dominant route: melt polycondensation of phthalic anhydride, p-tert-butylbenzoic acid and propylene glycol, all from petroleum. No alternative route is known.
In plain English
A polyester resin made from phthalic anhydride, butylbenzoic acid and propylene glycol. It forms a glossy film and adjusts thickness in a formula. All three building blocks are made from petroleum.
CosIng definition: 1,3-Isobenzofurandione, polymer with butylbenzoic acid and 1,2-propanediol
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.
- 2PHTHALIC ANHYDRIDE/BUTYL BENZOIC ACID/PROPYLENE GLYCOL COPOLYMER. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3PHTHALIC ANHYDRIDE/BUTYL BENZOIC ACID/PROPYLENE GLYCOL COPOLYMER. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PHTHALIC%20ANHYDRIDE/BUTYL%20BENZOIC%20ACID/PROPYLENE%20GLYCOL%20COPOLYMER