Elbow neglect can cause dry, scaly patches to form just over the joint. You can halt the buildup of dead skin cells with a regular exfoliating regimen. It starts with a physical defense like a sugar scrub or body brush. You can whip up your own with coarse brown sugar and olive oil. Another kitchen brightening must-have is a paste of baking soda. It exfoliates naturally. Focus on giving your elbows and knees extra love at least once a week.