How we scored it
Where it comes from
Corn, tapioca or potato starch is lightly crosslinked with food/cosmetic-grade phosphate and etherified with a small amount of petrochemical propylene oxide. No bio-based propylene oxide route is commercial.
In plain English
A texture-stabilising starch from corn or tapioca, lightly modified with phosphate and a small synthetic group so it thickens more reliably. It stays mostly plant-derived by weight.
CosIng definition: Starch, hydrogen phosphate, 2-hydroxypropyl ether
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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.
- 2HYDROXYPROPYL STARCH PHOSPHATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3HYDROXYPROPYL STARCH PHOSPHATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HYDROXYPROPYL%20STARCH%20PHOSPHATE