The product is very effective. The first sessions are to be made every 15 days, but from the 3rd, we notice that the hair grows slower. A fter a 10aine sessions, the hair does almost more pushes, and only require maintenance every 2 months. This device changes the life: farewell hair! Two caveats: the lamp has a fifty flashes in less advertised; second drawback, the use is made with a pre shave (no waxing or cream, or tweezing), as saying that the use on the face is impossible, except for foolhardy who dared prior shaving ...