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

PROPYLENEDIAMINE

Safety grade: A

A synthetic compound that helps cosmetic formulas stay stable and work effectively on your skin. It's commonly used in color cosmetics and skincare products to maintain product consistency and extend shelf life while keeping ingredients blended together properly.

Graded using: COSING.

Last verified: June 9, 2026