Wrinkles start to wreak havoc in your 40s. "The density of elastic fibers that maintain skin's tautness begins to reduce, and it shows," says Dr. Fredric Brandt, a Manhattan dermatologist. Use a light exfoliating moisturizer cream with peptides or retin-A at night to help reduce fine lines. Deep creases like forehead lines, on the other hand, are there to stay.
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