If Drew Barrymore‘s glowing complexion has ever made you wonder what’s in her skincare routine, one product she reaches for ...

"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 crushed leg day on Monday. Tuesday felt fine. But Wednesday morning, you could barely lower yourself onto the toilet.

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 ...

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 ...

What is lactic acid? The terminology may be something you hear at the gym or associate with the dairy aisle at the grocery store, but did you know lactic acid can actually be applied into your beauty ...

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 ...

Don't worry—you don't have to douse your skin in rancid milk to reap its complexion-enhancing benefits. The best part is that you don’t have to douse your face in decaying milk to take advantage of ...

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 ...

Ready to feel more confident when reading your beauty products' ingredient labels? Enter, the Allure Ingredient Index. In this comprehensive guide, you'll find everything you need to know about the ...

If your cleanser needs to be kicked up a notch, it may be worth considering lactic acid. But what is lactic acid? Lactic acid is a type of AHA, or alpha hydroxy acid, derived from dairy and fermented ...