Use of Alpha Hydroxy Acids (AHAs) Used in Anti-Aging Skin Care Products
This is one of a series of articles delving into the anti-aging skin care ingredients commonly included in over the counter skin care products. This topic is considered extensively in A Blog Discussion About the Aging Process.
Over 200 manufacturers of skin care products in the United States mix Alpha Hydroxy Acids (AHAs) in their creams,etc.. This substance is promoted primarily as an chemical for reducing fine lines and wrinkles, irregular pigmentation and age spots, and decreasing the size of enlarged pores. AHAs are drawn from fruit and milk sugars and are seen in a whole host of skin creams and lotions. In higher concentrations they are used as chemical peels.
The United States Food and Drug Administration (FDA) recommends using skin care products with an AHA concentration of 10 percent or less and a pH of 3.5 or greater. The FDA has received a rash of reports indicating increased sensitivity to the sun from use of skin care creams, etc. with AHAs due to the exfoliant nature of the products. Accordingly, the FDA has issued a recommendation that product labeling bear this warning:
"Sunburn alert: This product contains an alpha hydroxy acid (AHA) that may increase your skin's sensitivity to the sun and particularly the possibility of sunburn. Use a sunscreen, wear protective clothing, and limit sun exposure while using this product and for a week afterwards."
Products for consumers using Alpha hydroxy acid must have a concentration of less than 10%. A concentration of 20% to 30% may be used by trained cosmetologists for chemical peels yielding results akin to microdermabrasion with erasure of fine lines and a smoother skin appearance. One to three applications may be needed.
So, it's clear that Alpha Hydroxy Acid (AHA) has a credible measure of science justifying it. For more information please visit the article, Anti Aging Skin Care Using AHAs (Alpha Hydroxy Acids).
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