DetailsCuranail 5% Nail Lacquer Amorolfine Treatment is a once weekly treatment for mild fungal nail infections. Curanail Nail provides treatment for up to two nails. Curanail contains the active ingredient amorolfine, an effective antifungal agent previously only available on prescription. Curanail kills a wide range of different fungi that can cause nail infections. This means that, for the majority of sufferers, Curanail can actually get rid of the infection.