Our Keyu pens contain acetic acid and glycerin. It can effectively treat a variety of skin problems, fundamentally solve warts, soften keratin dissolution, while moisturizing and removing aging keratin, leaving skin smooth and delicate. The way to use it is very simple: wipe the affected area clean and apply it evenly to the affected area, remember not to apply it to healthy skin. If there is a hard layer of skin on the surface of the affected area, it can be slightly trimmed and applied to promote penetration, continuous use for 3-5 days, and the wart will naturally fall off. Fade dark moles, flesh moles, corns, etc., deep cleaning, repair smooth skin.