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Solution
Glycolic Acid
By far, the most popular alpha hydroxy acid, it’s most recommended by dermatologists because it’s so well-received and shows the quickest results. This is because it’s the smallest acid in size, meaning the molecules can get deep into the skin. Derived from sugar cane, glycolic acid is very effective in breaking down skin cells and removing dead particles. The removal of waste and dead skin naturally boosts collagen and elastin production, resulting in smoother skin texture and a brighter complexion. Look for a glycolic toner, which is applied to the skin right after cleansing, allowing it to sink in and get to work.
Glycolic exfoliating and resurfacing wipes, $25 by Anthony
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Solution
Lactic Acid
Another alpha hydroxy acid, this is essentially a milder version of glycolic that’s the rare acid that’s actually a moisturizing exfoliant. A naturally occurring acid—in fact, it’s the same molecule responsible for the burn you feel in your muscles—it helps speed up cell renewal and turnover. Because it’s so mild, dermatologists recommend it to those with sensitive skin or irritation from acne who want to smooth out rough texture or even out skin-tone. Try a gentle exfoliating cleanser like this one designed to “quell redness and blemishes” or a toner that blends lactic acid with aloe to further calm skin.
Purifying facial exfoliant paste,
$59 by Aesop