Lactic acid builds up in muscles during intense exercise and causes a burning sensation. However, it is not responsible for next-day muscle soreness.

Lactic acid is a gentle AHA exfoliant that removes dead skin cells to hydrate, lighten dark spots, and improve overall ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

Congratulations to the hundreds of courageous runners who finished the 28th annual Steamtown Marathon today. Most of you will ...

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 ...

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 ...