Alpha hydroxy acid (AHA) is a type of organic acid that people can use to exfoliate the skin. AHAs work by loosening the top layer of old skin cells by breaking down the gluey substance that keeps skin cells joined together. This encourages the skin to grow more cells, increasing cell turnover. The following are some benefits of using AHAs for the skin:
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Removing dead skin cells: AHAs dissolve dead skin cells, unlike physical exfoliants such as abrasive beads or sponges that buff them away. This can help achieve a more radiant complexion by removing dull, lackluster skin cells.
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Improving skin texture: Acid exfoliants, such as AHAs, can remove rough or flaky skin without causing irritation. As a result, they can reduce the appearance of dry skin, blemishes, and keratosis pilaris.
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Reducing fine lines and wrinkles: AHAs have been shown to improve the overall texture and smoothness of aging skin when used consistently.
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Correcting discoloration: AHAs can help correct discoloration from scars, age spots, and melasma.
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Preventing acne breakouts: AHAs may reduce the size of enlarged pores, which are commonly seen in acne-prone skin. Skin cell turnover from exfoliating glycolic and lactic acids can even reduce acne scars.
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Increasing product absorption: AHAs can increase the absorption of other skincare products by removing the dead skin cells that can block their penetration into the skin.
It is important to note that products containing AHAs may irritate the skin, bring on redness, or make you more likely to get a sunburn for up to a week after you stop using them. It’s a good idea to talk to a dermatologist before trying an over-the-counter product with AHAs.