HYDROXYPROPYL STARCH PHOSPHATE is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

HYDROXYPROPYL STARCH PHOSPHATE

Modified Starch

Safety grade: A

A thickened starch derived from plants that has been chemically modified to absorb water and create a thicker, smoother texture. It's similar to cornstarch but processed to work better in cosmetics.

This ingredient thickens cosmetic products to achieve the right consistency and helps control how thick or thin the product feels when applied to skin.

Graded using: COSING, FDA.

Last verified: May 26, 2026