The Beauty Bar: Quercetin

By Jolene Hart

Packed with anti-inflammatory polyphenols and carotenoids, quercetin offers superb free-radical protection and even cancer-preventing potential. “Quercetin has antiviral, immuno-modulatory, gastroprotective, and anticancer properties,” says Jeanette Jacknin, MD, dermatologist and author of Smart Medicine for Your Skin (Penguin Putnam, 2001), making it a popular ingredient in topical acne treatments, anti-aging skincare, and scar creams. Quercetin is also a natural antihistamine, effective at relieving allergies and asthma, so boost your intake and breathe a little easier.

Try: Quercetin-filled foods like apples (with skins), onions, green and black tea, and berries. For adults with compromised health, Jacknin recommends a 100 to 250 mg quercetin supplement, such as Natrol Quercetin 250 mg capsules, three times a day. $9.50, 50 capsules; natrol.com

Apply: Eminence Organics Raspberry Pore Refining Masque. Quercetin-rich raspberries, blackberries, and blueberries tone and smooth skin while soothing redness and inflammation. $48, 2 oz; eminenceorganics.com