1,4-BUTANEDIOL is graded A (Safe) by Expert·ING, based on COSING regulatory data.

1,4-BUTANEDIOL

Safety grade: A

1,4-Butanediol is a colorless, water-soluble liquid that belongs to a family of alcohol compounds. It is a man-made chemical commonly used in various industrial and cosmetic applications.

It is used in cosmetic products as a solvent to help dissolve and blend other ingredients together, improving the texture and stability of formulas.

Graded using: COSING.

Last verified: May 26, 2026