Nailner Spray XXLNailner Spray is an easy to use spray that is clinically proven to treat & prevent fungal nail infections. It provides fast visible results & protects the newly grown nail from infection. Nailner Spray treats nail fungus by saturating the keratin layer of the nail & lowering the p H of the infected nail to create an unfavourable environment for the fungus, inhibiting growth. Nailner Spray can also be used once daily to help prevent fungal infection of the nails. Nailner Spray contains Approx. 200 applications.