Cryopen is a cutting-edge cryotherapy device that offers a painless, non-invasive method for eliminating unwanted benign skin lesions such as warts, veruccas, skin tags, age and sun spots, liver spots, cherry angiomas and milia from the body. The device is a pen-like instrument that emits a fine jet of nitrous oxide (N20) gas, which can eradicate many kinds of imperfections on the skin. The device works by freezing the affected area, causing the cells to break down and then be replaced with healthy tissues.