Rejuve MD uses bio-identical growth factors to smooth the skin and increase firmness and elasticity. Bio-identical growth factors are effective because they act just like the growth factors found naturally in young skin. They work by sending messages directly to the cells that have the ability to rejuvenate the skin all on their own. In essence, each growth factor speaks its own language, and because these messenger molecules communicate directly with the skin, they are the best way to instruct the cells to act younger. Rejuve MD contains the highest available concentration of three different bio-identical growth factors capable of communicating directly with the skin cells to renew the skins support structure and return it to a more youthful state.