Dr. Bailey Skin Care recommends applying oils and lotions to thin fingernails. Shea butter, coconut oil, olive oil and avocado oil are common hydrating ingredients that many people already have at home. It is best to apply oils and creams to wet nails so as to trap in the moisture.
Dr. Bailey Skin Care also recommends wearing vinyl gloves when exposing nails to water or chemicals for extended periods of time or when doing rough work. Best Health Magazine suggests eating a diet rich in foods with Vitamin B and essential fatty acids in addition to using acetate-based nail polish removers and avoiding artificial nails.