"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 ...

You may have heard that salicylic acid and glycolic acids are great exfoliating acids. Turns out, there is another skincare acid that can be added to the exfoliator list, too. Lactic acid. “Lactic ...

Made from the bacterial fermentation of sugar, lactic acid appears as an additive in vegan foods ranging from sourdough bread to soy sauce. This bacteria gives food its signature sour taste and acts ...

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 ...

Fun fact: Cleopatra, the infamous last queen of Egypt, reportedly took daily baths in donkey milk to maintain her smooth, glowing skin. This might just seem like a crazy beauty hack used before things ...

Skin care can be an investment. When it comes to the products you're slathering all over your face, you want to ensure you're getting an efficacious formula that's suitable for your individual skin ...

Found yourself going a bit overboard with high-strength skincare acids? Lactic acid is the low-strength, gentle alternative that has incredible benefits, without the sensitivity. If you’re hoping to ...

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 ...