Winter Skincare Tips, From Head to Toe

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Smooth as you soothe

Extra-dry skin like on dry upper arms can trigger a flare-up of keratosis pilaris, that annoying rough skin, says New York dermatologist Joshua Zeichner, MD.

"Try a lotion with salicylic acid to exfoliate dead cells around your hair follicles and reduce the appearance of bumps." We like CeraVe Renewing SA Cream ($23; mass retailers).

Next: Handle with care