Alpha-hydroxy acid (AHA) are naturally found in food, and areused topically (applied to the skin) for treating skin ailment and to moisturize, firm, and smooth skin. They are effective in treating acne and dry skin and in improving the appearance of acne, scars,wrinkle, dark pigmentation, spot, and photo-aged skin. AHAs work by dissolving the substance that keeps old skin cells attached to the epidermis. This exfoliate the top layers of dead skin cells, resulting in finer-looking skin. AHAs also stimulate the growth of collagen and elastin, making skin smother and firmer.
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