Better looking nails after 7 days - Nailner Brush 2 IN 1 contains ingredient that helps to quickly improve the appearance of the infected nail after just 7 days Nailner Brush 2 IN 1 is indicated for the treatment of nail fungus, while improving the appearance of nail. Treats nail fungus - by saturating the keratin layer of the nail and lowering the pH of the infected nail, Nailner products create an unfavorable environment to the disadvantage of the fungus, thereby treating Onychomycosis. No filing required - The formulation contains a moisturising ingredient to condition and improve the dried appearance of damaged nails. No filing is needed before application.