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 ...

Whether it’s a silky serum or luxurious cream, there are endless anti-aging products vying for your attention. From retinol to vitamin C to peptides, the ingredients make all the difference and there ...

"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 ...

Skin care can be an investment. When it comes to the products you're slathering all over your face, you want to ensure you're getting an efficacious formula that's suitable for your individual skin ...

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 ...

You may know lactic acid best either as the substance your muscles produce after a hard workout, or the phenomenon that makes milk go bad. Neither option would suggest that it does incredible things ...

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 ...

Exfoliation is an often overlooked, and I’d argue essential, step for keeping your skin smooth, fresh and healthy. According to Dr. Nicole Ruth, DO, FAAD, “Exfoliation removes dead corneocytes from ...

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 ...

Bacteria, including some bacteria in a person’s gut, make lactic acid during fermentation. Manufacturers add lactic acid to food to extend its shelf life, although in some foods, it occurs naturally.