The Cosmetic Science and Technology series was conceived to permit discussion
of a broad range of current theories and knowledge in cosmetic science and tech￾nology. Authorities from industry, academia, and government agencies from
around the world are participating in writing these books. Topics are drawn from
a wide spectrum of disciplines ranging from chemistry, physics, biochemistry,
and analytical and consumer evaluations to safety, efficacy, toxicity, and regula￾tory questions. Organic, inorganic, physical and polymer chemistry, emulsion
and lipid technology, microbiology, dermatology, and toxicology all play a role
in cosmetic science.