The hypoallergenic electrodes have much
            
            
              The hypoallergenic electrodes have much fewer problems for me. With both the original electrodes included with my machine and a replacement set of the standard electrodes, I’ve found the current too unpleasant to tolerate. However, I’ve never had problems with the hypoallergenic set.
I’m surprised that this is the most noticeable difference between the two styles. I expected that I would notice a difference on the long term effects for my skin (I have eczema), but the evenness of the electric pulse is what has been most important for me with this product. These are the only electrodes I will be buying from now on.