The manner in which skin ages is a result of heredity and environment. Sunlight is the most significant of the environmental factors.
Photoaging
Beta Hydroxy Acid - BHA
Submitted by Vicky on Thu, 05/22/2008 - 11:05.Salicylic acid has the same active ingredient (acetyl salicylic acid) as aspirin and is extracted from the willow tree bark.
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