How we scored it
Where it comes from
Manufactured by oligomerising propylene oxide, itself made from propylene derived from petroleum or natural-gas cracking. No bio-based route is commercially used.
In plain English
A humectant and solvent that helps stabilise emulsions and hold moisture. It is built entirely from propylene oxide, a chemical derived from petroleum refining.
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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.
- 2TRIPROPYLENE GLYCOL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3TRIPROPYLENE GLYCOL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=TRIPROPYLENE%20GLYCOL