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

BUTYL HYDROXYBUTYRATE

Safety grade: A

This is a synthetic liquid ingredient that helps dissolve and mix other substances together in cosmetic formulas. It works similarly to alcohol in helping products blend smoothly and stay uniform.

As a solvent, it dissolves other ingredients and helps them blend evenly throughout the product, ensuring a consistent texture and allowing active ingredients to be distributed uniformly.

Graded using: COSING.

Last verified: May 26, 2026