"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 ...

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 ...

Your warm-weather glow extends below the neck, too.

Here’s what actually happens during yogurt fermentation and why it matters for gut health. Fermentation is an anaerobic ...

The use of PLLA in nonfacial areas such as the buttocks and décolletage is associated with a low rate of mild and moderate AEs.

As many of us hit the gym or go for a run to recover from the silly season, you might notice a bit of extra muscle soreness. This is especially true if it has been a while between workouts. A common ...

Lactic acid forms during intense exercise. It breaks down into lactate, which you body can convert back to glucose for energy. Your body starts breaking down glucose to create energy when it's working ...

Most athletes consider lactic acid their enemy, and think that training helps eliminate the metabolic waste product from their muscles so the muscles will function longer and harder. But UC Berkeley ...

Lactic acid is an antiwrinkle and pigmentation-fighting ingredient found in over-the-counter (OTC) and professional-grade skin care products. Keep reading to learn how a lactic acid peel can improve ...

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 ...