Beautiful nails come with proper care and diligent attention, not only to the nail itself but to the cuticles, which provide protection for your nails. Keeping your cuticles healthy with proper trimming and moisturizing will make all the difference in the overall beauty and health of your nails. Over-trimming cuticles is a common mistake; cuticles should be minimally trimmed and well-hydrated in order to properly protect your nails. Brittle nails are a natural part of the aging process, resulting in dry, cracking or splitting nails. For a number of reasons (illness, infection, medications, poor circulation, trauma, frostbite, diet, nutrition, etc.), nails can also become discolored, flaky, pitted and ridged.