You'll get a smooth, pain-free shave and moisturize your legs in the process.Sans Age Cream Only use fresh, sharp razors if you suffer from sensitive skin. Old razors, with dull blades, pull on the hair and shave unevenly. Inferior new blades can be a problem as well. You can get rashes, discomfort, razor burns, and chafing. Razor blades should glide on the skin smoothly and without pain.