Duofilm Salicylic Acid kills warts without hurting. Simple to use and no masking necessary.Duofilm is a topical solution designed for easy wart removal.- Simple paint-on application- No masking necessary- Removes warts easilyApply DUOFILM once daily, using the brush applicator from the bottle until the wart has disappeared.Apply Duofilm directly to the wart.DUOFILM’s active formulation removes warts easily. Skin returns to normal after treatmentwithout scarring.The usual treatment time for Duofilm is 6 to 12 weeks. For the effective treatment of warts, Duofilm has 2 active ingredients both with keratolytic effects; salicylic acid (16.7%) and lactic acid (15%).