Surfactants, one of the major ingredient of cosmetic products, are characterized by their tendency to concentrate at interfaces and to alter the free energy of the interfaces. Through interfacial processes such as wetting, emulsification, solubilization, dispersion and modification of interfacial viscosity and electrical charge, surfactants can mix various ingredients in cosmetics (oil phase, water phase, solids, pigments, dyes, perfumes, enzymes and other additives) into a stable and homogenous system.
Excerpt Only This is a shortened version or summary of the article that appeared in the Jul. 1, 2001 issue of Cosmetics & Toiletries magazine. The full content is not currently available online.