Extra strength treatment for verrucas, warts, corns & calluses. Complete treatment kit with special applicator, emery board & instructions. Dries to form a water-resistant, protective barrier. Designed to inhibit spread of the verruca/wart infection. No plasters necessary. Simple, once-daily application. Salicylic acid. Active ingredients: Salicylic Acid 26.0% w/w. Also contains Camphor, Povidone, Pyroxylin, Ethanol, Acetone