How we scored it
Where it comes from
Polyester of petrochemical propylene glycol and terephthalic acid made by polycondensation. Bio-based propylene glycol or terephthalic acid exist but are negligible in cosmetic supply.
In plain English
A polyester made by linking propylene glycol and terephthalic acid into long chains, used to help stabilise emulsions and condition skin. Both building blocks come from petrochemicals.
CosIng definition: Poly(oxy-1-methylethyleneoxy-1,4-phthaloyl)
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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.
- 2POLYPROPYLENE TEREPHTHALATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POLYPROPYLENE TEREPHTHALATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYPROPYLENE%20TEREPHTHALATE