The Rio Laser Hair Removal System is designed for home use. You can now enjoy the benefits of permanent hair reduction without paying for expensive salon treatments. Laser hair removal works by sending a laser beam to the hair follicle with enough energy to destroy the root, without it affecting the surrounding area. There are no chemicals or painful needles This process is known as photothermolysis. As with all laser based systems, several treatments are required to completely clear an area of unwanted hair.