Fotona 4D works by using advanced laser technology to stimulate collagen production and tighten the skin from within. The treatment consists of four steps: SmoothLiftin™ for intraoral tightening, FRAC3® for deep rejuvenation, PIANO® for overall skin tightening, and SupErficial™ for a light peel. Together, these steps provide a complete facial rejuvenation, addressing both surface and deeper skin layers.