Both laser and electrolysis are FDA-approved methods of hair removal. Laser is classified as permanent hair reduction because the laser can not remove blonde or gray hairs. Laser can quickly and effectively remove dark hairs from large areas of the body. Electrolysis is classified as permanent hair removal because electrolysis can remove all hairs regardless of color. Electrolysis can be used on areas both large and small and is perfect for removing hairs in areas that need detailed shaping, such as the eyebrows.