"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." We're here to tell you that lactic acid doesn't just cause sore muscles. In the skincare world, salicylic ...

Lactic acid is an over-the-counter chemical exfoliant that comes from the fermentation of lactose — a carbohydrate found in milk. It's a popular ingredient in numerous skin care products nowadays. But ...

Aimed at softening and smoothing skin by gently but effectively exfoliating the top layer of skin, lactic acid can significantly improve the appearance of all skin types with regular use. It can be ...

Whether it’s a silky serum or luxurious cream, there are endless anti-aging products vying for your attention. From retinol to vitamin C to peptides, the ingredients make all the difference and there ...

Whether it's the new phenomenon of maskne or a long-standing relationship with breakouts, acne is simply a part of many people's skin care lives, and that's okay. But if you do want to get rid of the ...

From glycolic to salicylic, exfoliating acids have quickly become a mainstay in our beauty routines. But lactic acid seems to be the lesser known of the bunch, despite being a dermatologist’s favorite ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? When it comes to all-star skincare ingredients, science has a way of creating ...

When I first heard about using lactic acid for skin, I had a moment of confusion—isn't that what builds up in your muscles during a workout and causes soreness later? Turns out: more or less, yes! I ...