RT Book, Section A1 Baumann, Leslie A1 Saghari, Sogol A2 Baumann, Leslie A2 Saghari, Sogol A2 Weisberg, Edmund SR Print(0) ID 1172445532 T1 Basic Science of the Epidermis T2 Cosmetic Dermatology: Principles and Practice, 2e YR 2009 FD 2009 PB The McGraw-Hill Companies, Inc. PP New York, NY SN 9780071490627 LK dermatology.mhmedical.com/content.aspx?aid=1172445532 RD 2024/04/23 AB The skin is composed of three primary layers: epidermis, dermis, and subcutaneous tissue. Each layer possesses specific characteristics and functions. Although research regarding skin layers continues, much is already known about the structure of each component. New discoveries about these components have already led to prenatal diagnoses of many inherited diseases and to improved therapies. In the future, study of these components will likely lead to an enhanced understanding of skin aging and the effects of topical products on the biologic function of the skin.