"ZIIP utilizes nano-current and microcurrent to deliver skin that gets better every time you use it. Using the ZIIP App and our sophisticated waveform combinations, you choose the results you want for your skin on any given day. Your ZIIP GX comes pre-loaded with the Energize treatment, an all-encompassing rejuvenating and preventative program is for all skin types." Loved, but seldom use it. Including the Silver Gel (great for sensitive skin) as an extra!