Iontophoresis - IOMED disposable electrodes - IOGEL, medium 2.5cc, pack of 12 : Single use iontophoresis electrodes for various treatment sites. Clear adhesive allows precise placement on target site. Silver-silver chloride conducts more efficiently than carbon and stabilizes pH without using chemical buffers. Gel Sponge ensures complete contact between the electrode and the skin and provides a conductive medium similar to ultrasound gel. EZ Fill Window protects adhesive during hydration and handling and provides no-stick handling.