You may have heard that salicylic acid and glycolic acids are great exfoliating acids. Turns out, there is another skincare acid that can be added to the exfoliator list, too. Lactic acid. “Lactic ...

In skincare products, exfoliating acids work by loosening the bonds between dead skin cells to support regular cell turnover, ...

If I were to rifle through your current skincare lineup, I’d bet I’d find at least one of the following: salicylic acid, ...

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 ...

The winning formula? Dr. Jefferson recommends using daily broad-spectrum SPF 30+ (non-negotiable), a retinol or retinoid for ...