What does glycolic acid do? Well, a little bit of everything, which is why we (and so many others) love it so much. The exfoliating acid is a game-changer for acne-prone skin. If you’ve found ...

Glycolic acid, like other exfoliating acids, can be irritating on the skin, especially when used on your armpits, where your skin is thin and the folds rub against each other, Dr. Garshick says.

Lying flat on your back also makes it easier for stomach acid to flow back into the esophagus, fueling heartburn. “The best sleeping position is the one that feels the most comfortable, such ...

When TikTok tells you to put a facial toner on the soles of your feet – namely The Ordinary glycolic acid 7% exfoliating toner (£6.75, Beautybay.com) – you, of course, give it a go. It’s a tough job, ...

I’ve always believed that retinol and glycolic acid are like the N’Sync and Backstreet Boys of the skin-care world: You’re either a fan of one or the other, but never both. So, you can ...

Glycolic acid is a dermatologist favorite for smoother, brighter skin. Find out all the game-changing uses of this exfoliating AHA for acne, anti-aging, and more.

Because glycolic acid on its own can be harsh on the delicate skin under your arms, Dr. Zalka also included a soothing postbiotic called lactobacillus ferment in the formula.