A cosmetic non-surgical method of analyzing skin tissue using one or more illumination light sources and treating the skin tissue with a source of treatment light comprising providing a source of treatment light along an optical axis; providing a plurality of illumination light sources of different wavelengths of light output along the optical axis; providing one or more sensors along the optical axis; providing a programmable controller, the programmable controller controlling the activation of the plurality of illumination light sources and the source of treatment light; the method comprising the steps of the controller selecting one or more of the plurality of light sources, activating selected one or more of the plurality of light sources and directing it to the skin tissue, the illumination light being reflected from the skin tissue along the optical axis to the input of the one or more sensors; the one or more sensors measuring the light reflected from the skin tissue and transmitting information sensed of measured light to the programmable controller from the output of the one or more sensors; the programmable controller processing the measured light received from the output of the one or more sensors and providing a treatment light regimen; the programmable controller activating the source of treatment light according to the treatment regimen to the skin tissue, and, treating the skin tissue; characterized in that the controller is selecting the one or more of the plurality of illumination light sources based on the depth of the skin tissue to be analyzed. providing a source of treatment light along an optical axis; providing a plurality of illumination light sources of different wavelengths of light output along the optical axis; providing one or more sensors along the optical axis; providing a programmable controller, the programmable controller controlling the activation of the plurality of illumination light sources and the source of treatment light; the method comprising the steps of the controller selecting one or more of the plurality of light sources, activating selected one or more of the plurality of light sources and directing it to the skin tissue, the illumination light being reflected from the skin tissue along the optical axis to the input of the one or more sensors; the one or more sensors measuring the light reflected from the skin tissue and transmitting information sensed of measured light to the programmable controller from the output of the one or more sensors; the programmable controller processing the measured light received from the output of the one or more sensors and providing a treatment light regimen; the programmable controller activating the source of treatment light according to the treatment regimen to the skin tissue, and, treating the skin tissue; characterized in that the controller is selecting the one or more of the plurality of illumination light sources based on the depth of the skin tissue to be analyzed. the controller selecting one or more of the plurality of light sources, activating selected one or more of the plurality of light sources and directing it to the skin tissue, the illumination light being reflected from the skin tissue along the optical axis to the input of the one or more sensors; the one or more sensors measuring the light reflected from the skin tissue and transmitting information sensed of measured light to the programmable controller from the output of the one or more sensors; the programmable controller processing the measured light received from the output of the one or more sensors and providing a treatment light regimen; the programmable controller activating the source of treatment light according to the treatment regimen to the skin tissue, and, treating the skin tissue; characterized in that the controller is selecting the one or more of the plurality of illumination light sources based on the depth of the skin tissue to be analyzed.