2,3-BUTANEDIOL is graded A (Safe) by Expert·ING, based on COSING regulatory data.

2,3-BUTANEDIOL

Safety grade: A

2,3-Butanediol is a small alcohol-based compound that can be found naturally in some fermented foods or made in a lab. It has a slightly sweet smell and a smooth, liquid texture that blends easily into skincare products.

It is used in cosmetic products to attract and retain moisture in the skin, help other ingredients mix together smoothly, and improve the overall feel and spreadability of a formula.

Graded using: COSING.

Last verified: May 26, 2026