Brittle Nails

Made up of layers of a protein called keratin, your nails serve as protection for your fingers and toes. Keratin, which also makes up the cells in your hair and skin, works to protect nails from damage.

But it’s not uncommon for nails to split, peel, or break. In fact, according to Harvard Medical School, 27 percent of women have brittle nails, also known as onychoschizia.

This can be the result of an underlying health condition or other external factors.