Electrolysis destroys one hair follicle at a time. The electrologist holds one hair shaft with a tool, and applies small amount of current from the electrolysis device, which destroys the hair follicle. It is lengthy, tedious, painful procedure – an ancient way of hair removal. Laser Hair Removal treats many hair follicles with every laser pulse. With Laser Hair Removal, even a large area like the legs can be treated in less than thirty minutes.