If you want to make a quick hair removal ... it is not the right cookware! What precautions! Cons-indications that too! The description of side effects is impressive: Pregnancy, lactation, exposure to sunlight or UV in the previous month (! Not the day before, not the same day ... a month before), spots on the skin with freckles, , beta blockers treatments such as diabetes, epilepsy, pacemaker, .... in case of STOP IMMEDIATELY burning etc. covering clothing, sunscreen index greater than 50, before and after treatment ... you name it. The sessions should be at 2 per month for 2 months and 1 month for 3 months. test must be done on the leg 48 hours before starting. It increases the intensity gradually very precisely: Do not lose the user manual. The skin should be shaved. The exposure time is also very accurate. So it's a device that is not without risk and must be handled very carefully.