Cutaneous Cleansers

Skin Therapy Letter-Family Practice Edition

关键词: cleansers;    emulsifiers;    detergents;    surfactants;    soaps Skin cleansers are surface-active substances (i.e.;    emulsifiers/detergents/surfactants/soaps) that lower the surface tension on the skin and remove dirt;    sebum;    microorganisms and exfoliated corneum cells in an emulsified form. The ideal cleanser should do this without irritating;    damaging or disrupting the skin and the moisture skin barrier. Water alone removes approximately 65% of oil and dirt from the skin;    but is less effective at removing oils of cosmetic import and some environmental insults. Soaps are the oldest surfactants;    and are chemically defined as the alkali salt of fatty acids with a pH of 9.5-10. Synthetic detergents vary in composition and surfactant types (i.e.;    anionic;    amphoteric;    cationic;    non-ionic;    and silicone) and pH. In modern usage;    the term "soap" generally refers to any cleansing agent regardless of chemistry.1;   

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学科分类：医学（综合）

来源: Skin Therapy Letter-Family Practice Edition

【 摘 要 】

Skin cleansers may be an important adjunct to the regimen of those who use cosmetics, have sensitive or compromised skin, or utilize topical therapies. Cleansers emulsify dirt, oil and microorganisms on the skin surface so that they can be easily removed. During cleansing, there is a complex interaction between the cleanser, the moisture skin barrier, and skin pH. Cleansing, with water, soap or a liquid cleanser, will affect the moisture skin barrier. Soap will bring about the greatest changes to the barrier and increase skin pH. Liquid facial cleansers are gentler, effecting less disruption of the barrier, with minimal change to skin pH, and can provide people with a cleanser that is a combination of surfactant classes, moisturizers and acidic pH in order to minimize disruption to the skin barrier.

【 授权许可】

Unknown