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 ...

"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 ...

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Lactic acid has long been vilified, but new research shows that it doesn't impair muscle function. In fact, it might actually be good for you. Like all great villains, lactic acid has been ...

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 ...

Lactic acid is a natural preservative often found in foods like yogurt, baked goods, and pickled vegetables. Along with making your food last longer, it can boost your health by strengthening your ...

Lactic acid build-up causes a burning sensation in your muscles during intense exercise. Lactic acid is not responsible for sore muscles the day after exercise, contrary to popular belief. To get rid ...