Anhydrous agents for topical application, comprising one or more C1-C4alkyl esters of lactic acid, malic acid, tartaric acid or citric acid andphysiologically acceptable excipients, are described for the treatment ofnail disorders caused by mycoses and for nail care. The agents accordingto the invention are also suitable in veterinary medicine for treatingfungal infections of the hooves, claws and talons of pets and farm animalsand wild animals living in captivity.