Dark Spot Removal - Cryotherapy is the exposure of the skin to low temperatures, used to treat dark spots. It destroys unwanted cells through an extreme temperature drop, also called thermal shock. This treatment has been clinically proven to effectively and safely remove sun spots with extreme precision and control.The cryo treatment uses a pen that releases a precise flow of liquid carbon dioxide (CO2) to gently freeze away unwanted age spots, sun spots and skin tags from the face, hands, and