POLYDIALLYL PHTHALATE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

POLYDIALLYL PHTHALATE

Safety grade: A

This synthetic polymer works as a film-former in cosmetics, creating a protective layer on skin or hair to help products stick around longer and maintain their effectiveness. It's derived from petroleum-based chemicals and is commonly used in long-wearing formulas like waterproof makeup and nail polishes.

Graded using: COSING.

Last verified: June 9, 2026