Urgo Resistant Wart Stick Pen is formulated to act on common and plantar warts that are more difficult to remove, helping to progressively destroy wart tissue through a localized chemical action. Its formula contains trichloroacetic acid (TCA-Active™), an ingredient with keratolytic action that helps promote the gradual elimination of the wart and skin renewal. The pen format with a precision tip allows for controlled application directly onto the wart, reducing product waste and helping to limit contact with surrounding healthy skin. The bluish formula also facilitates visualization of the applied area, making its use safer and more precise. This treatment is indicated for adults and children from 4 years of age, being especially useful for persistent warts located on the hands and feet that cause discomfort, pain, thickening of the skin or aesthetic embarrassment. Daily application for several consecutive days helps to promote the progressive elimination of the wart until visible disappearance.