Men! Moisturizing isn't just for the ladies. Moisturizers contain humectants, substances that help to retain moisture, and occlusives, which help to keep water from evaporating from the skin. Moisturizers help keep skin silky which in turn creates a smoother shave and helps reduce the risk of razor burn, razor bumps and nicks and overall irritation. It also helps protect skin from sensitivity and environmental aggressors, as most moisturizers fight free radical damage.