For best results, it is recommended that you replace the electrodes as soon as the conductive gel starts to wear down. This will generally occur anywhere from 10-30 uses (depending on use). You can increase the lifespan of your electrodes by keeping them in the air tight package when not in use, cleaning your skin prior to putting the pads on your skin and rubbing a small drop of water on the electrode pad after each use. Opened or used electrodes can not be returned for a refund.
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