Laser hair removal removes unwanted hair permanently by targeting and damaging the root of the hair. The laser itself is attracted to pigment or colour. Assuming there is a good contrast between the skin and the hair, the laser damages the root and leaves behind a small stem. Over the next 2-3 weeks, it will appear as if the hairs are growing when actually the skin is naturally pushing this stem up and out. If you were to pull at these hairs with your fingers (not tweezers) 2-3 weeks after the treatment these hairs slide out with no resistance at all. Once these hairs fall out there will be a period where there is very little hair. With a new cycle of hair growth approximately 6 to 8 weeks for the body and 4 to 6 weeks for the face, you would be coming in for your next treatment.