Spectra 360 Electrode Gel is made without the use of salt, chloride-free, hypoallergenic, and bacteriostatic multi-purpose electrode conductivity gel. This gel is for Carbon Electrodes that are used with TENS, IFC, and NMES units. The only salt-free and chloride-free electrically conductive gel, recommended for all electromedical procedures, except defibrillation. Salt-free characteristics make it particularly suitable for long-term applications. Spectra 360 differs significantly from all other electrically conductive media; it works by wetting the skin, thereby reducing skin resistance. 3 bottles available