tert-Butyl Alcohol

T-BUTYL ALCOHOL

Data confidence:High

Function

Solvent

EWG Safety Score

4/10Moderate concern

About this ingredient

T-butyl alcohol is a volatile organic solvent and viscosity regulator used in cosmetic formulations to dissolve hydrophobic ingredients and enhance product texture and stability. It functions primarily as a solvent and preservative booster with rapid evaporation from skin, providing no direct skin conditioning benefits but improving the delivery and efficacy of active ingredients.

Found in 1+ sunscreens