RT Book, Section A1 Baumann, Leslie A1 Weisberg, Edmund A2 Baumann, Leslie A2 Saghari, Sogol A2 Weisberg, Edmund SR Print(0) ID 1172446067 T1 The Baumann Skin Typing System 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=1172446067 RD 2024/04/23 AB The modern cosmetic and skin care product market began to take shape in 1915 amidst the intense rivalry between the burgeoning cosmetics entrepreneurs Helena Rubinstein and Elizabeth Arden, both of whom opened salons that year that would grow into powerful business empires. Since that period, the categories “dry,” “oily,” “combination,” and “sensitive” have been used to characterize what Helena Rubinstein identified as the four fundamental skin types. While these designations were the virtually undisputed standards for understanding skin type, the skin care product and cosmetics markets were growing exponentially, evolving into an innovative multibillion dollar industry, and spawning a new category of products known as “cosmeceuticals,” unregulated cosmetic formulations that may impart some alteration to the biologic function of skin. In fact, these products have become so popular that relatively recent sales figures indicated that $6.4 billion in sales of skin care cosmeceuticals were projected in the US in 2004, an increase of 7.3% from the previous year.1 Such sales expectations have since been exceeded, as by spring 2006, sales of cosmeceuticals in the US had mushroomed to the $12 billion level.2