Quickly and easily remove warts and verrucas with Wartner Wart & Verruca Cryo Freeze. Reveal healthy skin within 10 to 14 days, or safely repeat the treatment after 14 days. The cryotherapy method used by Wartner is clinically proven to be effective. It works by freezing the wart or verruca, causing it to fall off and allowing new, healthy skin to grow.