A photosensitizer mixture and a method of treating cellulites by means of a percutaneousapplication of the mixture into the area of cellulite buildup followed by lightillumination are presented. The photosensitizer can be combined with one ormore cellular products including adipose cells and/or collagen that have beenpreviously removed by liposuction. This mixture can also include other compoundssuch as Lipofundin MCT 10 % to improve the photosensitizer's diffusionor to dilute it Varying concentrations are used depending on the area of treatmentas well as the stage of the cellulites and whether the cellulites present a depressedarea in the skin or an elevated area. The cosmetic treatment method substantiallyreduces or removes localized lipodystrophies and/or flaccidity and/or celluliteby localized laser, LED or other light irradiation of the area of treatment havinga photosensitizer applied therein. The light energy is applied to destroy the"fat" cells by a combination of chemical reactions, primarily, andtemperature wherein the cell walls break releasing the cell fluid. The lightradiation is generally applied through devices to guide the radiation to thearea of treatment. One or more light sources such as laser diodes or LEDs may becoupled into one or more optical fibers to increase the area of coverage as wellas increase the amount of radiation in that area of coverage. Optical fibers canbe introduced percutaneously or possibly interstitially into the area of treatment.Cell fluid in the area of treatment is removed by a combination of techniques.Quick and lasting cosmetic changes in areas having prior untreatable cellulitefat tissues are achieved while minimizing trauma.