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

THIOLANEDIOL

Safety grade: A

Thiolanediol is a synthetic liquid ingredient that helps dissolve and mix other components in cosmetic formulas. It's a humectant that also helps maintain moisture in products.

This ingredient works as a solvent to dissolve and blend other components in cosmetic formulations, while also helping to preserve product stability and maintain hydration.

Graded using: COSING.

Last verified: May 26, 2026