1,5-PENTANEDIOL is graded A (Safe) by Expert·ING, based on COSING regulatory data.

1,5-PENTANEDIOL

Safety grade: A

1,5-Pentanediol is a clear, odorless liquid made up of a short chain of carbon atoms with moisture-attracting properties. It belongs to the same family as common humectants found in many skincare products.

It is used in cosmetic products as a solvent to help dissolve and blend other ingredients together, while also helping to keep skin moisturized and improving the texture of formulas.

Graded using: COSING.

Last verified: May 26, 2026