Sunscreen Efficacy Validation and Other Topics

Dec 23, 2005 | Contact Author | By: Charles Fox, Independent Consultant
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Title: Sunscreen Efficacy Validation and Other Topics
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Skin and Skin
Care pH on epidermal permeability:
Hachem et al. have studied the effect of pH on epidermal permeability and skin barrier homeostasis.1 Although the skin has long been known to display an acid surface, known as an “acid mantle,” little is known about either the origin or the function of this acidic surface. Prior students of the acid mantle ascribed its origin principally to exogenous sources of microbial, sebaceous gland and/or eccrine gland origin.2 Recent studies support alternative views of the origin of the acid mantel, as well as additional functions of the stratum corneum (SC).3-5

Excerpt Only This is a shortened version or summary of the article that appeared in the Jan. 1, 2004 issue of Cosmetics & Toiletries magazine. If you would like a copy of the complete article, please contact us at customerservice@cosmeticsandtoiletries.com.