Should I use golden gel, crystal gel or silver gel?

All gels will conduct ZIIP’s electrical currents identically, and can be used with the ZIIP GX and OX devices. The difference is in their additional skincare ingredients. Golden Gel is made with stimulating actives to fill and firm the skin. Crystal Gel is made with organic ingredients focused on radiance and repair. And Silver Gel has more plumping and brightening actives and is the best option for those with sensitive skin.