On average, three to four skin rejuvenation treatments. Most patients see improvement after 1 treatment.
The hair alternates between periods of growth (anagen) and no growth (telogen). The transition between the two periods is characterized by an interruption in bulb cell proliferation and by a widening of the terminal part of the hair root, which is anchored to the walls of the follicle; this intermediate phase is called catagen. In humans, the phases of different hair growth are not synchronized, i.e. each hair is in a different phase of growth. During a hair removal session, all the hairs are targeted, with no way of knowing in which phase of growth they are. That means that, in a certain area, only a specific percentage of hair reacts to the laser treatment, i.e. only hairs in anagen phase. Therefore, a series of laser sessions is always necessary. How many sessions are needed varies on a case by case basis and depends upon hair and skin type as well as on genetic predisposition. Normally, six to ten sessions per area are needed in order to reach hair reduction of up to 90%.