The nail is an extension of the skin and can provide clues to systemic health and wellness. Microorganisms, nutrition, and individual nail composition can contribute to the health and appearance of nails. There are several medications for treating common nail disorders such as onychomycosis, but their mixed efficacy and patient burden can spur a desire for alternative treatments. This article highlights a few common nail disorders and the evidence for treating them outside of the pharmaceutical realm. Is biotin all that it is cracked up to be, and should you try tea tree oil for nail fungus?