After the first treatment of Laser Hair Removal with LightSheer Desire, it is assumed that 30 – 40% of dark hair (anagen) should not grow back. After three treatments, about 80 – 92% of the hair should not grow back (it has entered the anagen phase). The remaining percentage of hair is brighter, thinner and less noticeable. Patients with thinner or lighter hair, may have a weaker effect, as there is not enough melanin in the follicles. Total hair removal (100%) is not usually possible. Lighter hair will have a thinning effect, instead of complete removal.