Carboxytherapy has been used in medicine for several dozens of years, and lately started being also used in aesthetic medicine. The treatment involves injecting carbo dioxide below skin. During the first phase there appears a passing underoxidation of tissues which results in widening blood vessels with following skin hypermia. As a result, healing processes speed up, skin condition and look improves. Lipolytic activity of carbon dioxide is connected to its partial transformation into carbon acid which dissolves fat cells. Additionally, increased blood supply leads to increased lymphatic drainage of a cured area, fastening metabolism and eliminating released fat.