The most important aspect of the Jet Therapy system is its ability of trans-dermal substance delivery without using injections. Here is how this is made possible: 

The Jet system utilizes a specifically designed patented handpiece to create a very high-speed two-phase jet consisting of microdroplets of saline solution. The kinetic energy of the droplets peels off the dead skin cells while opening micro-channels through which specially formulated active molecules can penetrate the skin. 

Even more importantly, the change in surface temperature stimulates blood flow, improving circulation and creating a level of humidity that is ideal for toning, and deeply moisturizing the skin. The best part is, all of this is made possible without any pain!