If you're a skin-care fanatic who spends hours on #skintok, you may have already come across tartaric acid, a trendy skin-care ingredient making its way into many new formulations. If you haven't ...

While exfoliating is key to maintaining healthy skin, using products that have a rough texture or an aggressive formula risks damaging your skin barrier. When you exfoliate away dead skin cells from ...

"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 ...

Using a new skin care product without testing it first can potentially cause allergic contact dermatitis, an inflammatory skin condition in which the immune system overreacts to an ingredient in the ...

William Truswell, MD, FACS, operates his own cosmetic and reconstructive facial surgery practice. Dr. Truswell was the first in his area in Western Massachusetts to have an accredited private office ...

Putting acid on your face might sound like a recipe for disastrous stinging, burning, and peeling—a la Samantha’s lobster-red face in that unforgettable episode of Sex and the City. Lactic acid for ...

Another day, another skincare product! Hypochlorous acid is the latest popular addition to sensitive and acne-prone skin people’s skincare routine and, allegedly, has calming and healing ...

“Hypochlorous acid is a naturally occurring ingredient in the body with antimicrobial and anti-inflammatory properties,” explains dermatologist Teresa Song, MD. “It is made by our immune ...