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

PROPANEDIOL

Safety grade: A

Propanediol is a clear, colorless liquid that acts like a humectant, helping to draw moisture into the skin and keep products at the right consistency. It's a moisture-retaining ingredient commonly used in skincare and cosmetics.

Propanediol dissolves other ingredients to create stable formulations while helping products maintain the right thickness, and it also helps skin retain moisture for a smoother, hydrated feel.

Graded using: COSING, FDA.

Last verified: May 26, 2026