Carboxy therapy improves circulation at the injection site by forcing red bloods cells to release oxygen and pick up C02 to be eliminated by the body. This process of oxygenating the area causes angiogenesis of blood vessels in the area by nourishing the hair follicle much like laser hair rejuvenation. It also promotes the opening up of tiny blood vessels, which allows for the increased nourishment of vitamins and nutrients to the scalp and hair follicles.

Normally a series of treatments are required for best results. Patients usually notice a stabilization of hair loss after three months and an increase in the growth of hairs at six months.