As its name implies, the Jack Black Industrial Strength Hand Healer ($15-$46) is built tough for chapped elbows and knees, and cracked, calloused hands and feet. That's not to say if your skin is not quite in need of the full industrial strength power, it's not for you. It's just simply strong enough for people who have extremely dry skin and also useful to those with regular dry skin, as its eucalyptus and vitamins A and E can soothe just about anyone.