Laser hair removal removes unwanted hair permanently by targeting and damaging the root of the hair. The laser itself targets the pigment or colour of the hair to damage the root and leave behind a small stem. Over the next 2-3 weeks the hairs may grow when the skin is naturally pushing this stem up and out. Once these hairs fall out there will be a period with little to no hair. You need to come in every 6-8 weeks and for multiple sessions because different hair growth cycles need to be targeted.