BUTOXYETHANOL

Butoxyethanol (2-butoxyethanol) is a glycol ether solvent produced by the reaction of ethylene oxide with n-butanol, resulting in a clear, low-viscosity liquid with a mild, ether-like odor. In cosmetic formulations, it is valued for its ability to couple water and oil phases, reduce viscosity in aqueous systems, and improve the spreadability and skin feel of products such as cleansers, toners, and nail care formulations. Formulators choose it for its excellent solvency power for a wide range of resins and pigments, though its use is subject to concentration restrictions in certain markets due to dermal absorption and toxicological considerations.