A. When you drink water, it keeps your skin from getting dehydrated and prevents premature fine lines and wrinkling. When your skin is hydrated, it also plumps and firms up the skin, keeping it soft and supple, and lesser susceptible to acne, sunburn and the side effects of pollution. Besides drinking enough water2 for skin care, keep splashing or spraying it on your face every few hours for that added boost of moisture.