All forms of IPL or Laser hair removal systems will need some maintenance, or eventually the hair will start growing back with time.After completing all the sessions on a 12 week period with the One Glide IPL handset, you will only need to touch up once every 3 months to maintain the hairless silky smooth skin you always desired.On another hand, Electrolysis is the only method in the world of hair removal that has been approved for being marketed as a permanent hair removal service. Laser works very similar to IPL and is not 100% completely permanent.