“Lactic acid is an alpha-hydroxy acid designed to exfoliate, smooth, and brighten the skin,” Dr. Geeta Yadav, board-certified dermatologist and founder of FACET Dermatology tells ESSENCE.

Like with other alpha hydroxy acids, look for a lactic acid peel or other products that you use a couple of times a week for deeper exfoliation, says Jennifer MacGregor, M.D., Union Square Laser ...

"Avoid the use of lactic acid on skin that is irritated or inflamed, like a sunburn," Dr. Camp says. Like with most ingredients, it's best to do a spot test 24 hours before to check your tolerability.

Lactic acid Lactic acid is an alpha hydroxy acid mostly derived from milk, but it can also be extracted from vegan sources like corn starch and other sugar-rich foods. However, most skincare ...

Lactic acid Lactic acid is an alpha hydroxy acid mostly derived from milk, but it can also be extracted from vegan sources like corn starch and other sugar-rich foods. However, most skincare ...

Lactic acid Lactic acid is an alpha hydroxy acid mostly derived from milk, but it can also be extracted from vegan sources like corn starch and other sugar-rich foods. However, most skincare ...

Lactic acid Lactic acid is an alpha hydroxy acid mostly derived from milk, but it can also be extracted from vegan sources like corn starch and other sugar-rich foods. However, most skincare ...

Lactic acidLactic acid is an alpha hydroxy acid mostly derived from milk, but it can also be extracted from vegan sources like corn starch and other sugar-rich foods. However, most skincare ...

Lactic acidLactic acid is an alpha hydroxy acid mostly derived from milk, but it can also be extracted from vegan sources like corn starch and other sugar-rich foods. However, most skincare ...

Lactic acidLactic acid is an alpha hydroxy acid mostly derived from milk, but it can also be extracted from vegan sources like corn starch and other sugar-rich foods. However, most skincare ...

Lactic acid Lactic acid is an alpha hydroxy acid mostly derived from milk, but it can also be extracted from vegan sources like corn starch and other sugar-rich foods. However, most skincare ...