A method of non-invasive cosmetic treatment of cellulite, the method comprising using a system, which is characterized by: an ultrasound probe configured to provide a mechanical action of ultrasound for breaking fat clusters and stretching fibrous bonds within a region of interest comprising a lower portion of a dermis, and a proximal protrusion of fat labuli, and wherein the ultrasound probe is configured to deliver conformal ultrasound energy within the region of interest for creating a thermal injury and coagulating the proximal protrusion of fat labuli, thereby eliminating the fat protrusions into the dermis resulting in improved appearance of the overlaying superficial layers of skin showing cellulite; and a controller coupled to and in communication with the ultrasound probe and configured for controlling the ultrasound probe; wherein the method further comprises: coupling the ultrasound probe to the region of interest comprising below a skin surface showing cellulite; applying the conformal ultrasound energy to the region of interest, wherein the applying of the ultrasound energy comprises: increasing a temperature in at least a portion of the region of interest; thereby increasing the metabolic reaction for fat in the at least a portion of the region of interest; thereby reducing an amount of the fat in the at least a portion of the region of interest and cosmetically enhancing the skin surface showing cellulite. an ultrasound probe configured to provide a mechanical action of ultrasound for breaking fat clusters and stretching fibrous bonds within a region of interest comprising a lower portion of a dermis, and a proximal protrusion of fat labuli, and wherein the ultrasound probe is configured to deliver conformal ultrasound energy within the region of interest for creating a thermal injury and coagulating the proximal protrusion of fat labuli, thereby eliminating the fat protrusions into the dermis resulting in improved appearance of the overlaying superficial layers of skin showing cellulite; and a controller coupled to and in communication with the ultrasound probe and configured for controlling the ultrasound probe; wherein the method further comprises: coupling the ultrasound probe to the region of interest comprising below a skin surface showing cellulite; applying the conformal ultrasound energy to the region of interest, wherein the applying of the ultrasound energy comprises: increasing a temperature in at least a portion of the region of interest; thereby increasing the metabolic reaction for fat in the at least a portion of the region of interest; thereby reducing an amount of the fat in the at least a portion of the region of interest and cosmetically enhancing the skin surface showing cellulite. coupling the ultrasound probe to the region of interest comprising below a skin surface showing cellulite; applying the conformal ultrasound energy to the region of interest, wherein the applying of the ultrasound energy comprises: increasing a temperature in at least a portion of the region of interest; thereby increasing the metabolic reaction for fat in the at least a portion of the region of interest; thereby reducing an amount of the fat in the at least a portion of the region of interest and cosmetically enhancing the skin surface showing cellulite. increasing a temperature in at least a portion of the region of interest; thereby increasing the metabolic reaction for fat in the at least a portion of the region of interest; thereby reducing an amount of the fat in the at least a portion of the region of interest and cosmetically enhancing the skin surface showing cellulite.