Ipl hair removal works by using intense pulsed light the light penetrates the skin and is absorbed by the melanin in the hair this absorption treats the hair with the light being transported to the hair follicle which heats up for a millisecond and destroys the hair follicle in each flash hundreds of follicles are destroyed after treatment your hair will grow back in line with the normal hair growth cycle you will notice the hairs that have been successfully treated will fall out within