Stretch out your hand and take a look at your nails. See those tiny crescents of skin at the base of each nail? Your cuticles are made of the same cells as the rest of your skin, but because they’re thinner than the skin on your elbows, back, knees and ankles, cuticles are ultra-sensitive and far more prone to wear and tear. For that reason, you may need to take extra precautions to keep your cuticles healthy.