Celluli Laser S treatment is a cellulite tracker that reshapes the appearance and affects of cellulite as you sleep. I had a 20ml sample size to trial which lasted three nights so unfortunately my review will not be as conclusive as I would have liked. The product was applied to my legs from ankles to thighs and then I massaged the product in until absorbed. After use my thighs felt firmer but I would really like to try the full-size product to gain a better indication of its performance.