An exercise physiologist explains lactic acid, and it's impact on our bodies. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. What is lactic acid ...

"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 ...

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 ...