September 12, 2025

Safety Assessment of Diacetone Alcohol as Used in Cosmetics

PFPaul FergusonNIHR Surgical Reconstruction and Microbiology Research Centre WBWilma F. BergfeldCleveland Clinic DBD. BelsitoColumbia University Irving Medical Center

Key Points

Diacetone alcohol is considered safe for use in cosmetics, ensuring consumer protection.
The evaluation was based on available data regarding its function as a solvent and fragrance ingredient.
The Expert Panel concluded that current practices of use maintain the ingredient's safety profile.
This assessment supports the ongoing use of diacetone alcohol in cosmetic formulations.

Abstract

The Expert Panel for Cosmetic Ingredient Safety (Panel) assessed the safety of Diacetone Alcohol as used in cosmetic formulations. This ingredient is reported to function as a fragrance ingredient and solvent. The Panel considered the available data and concluded that Diacetone Alcohol is safe in cosmetics in the present practices of use and concentration described in this safety assessment.

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