In college, I thought dipping your finger in DMSO to "taste" the molecule would be a bad idea. Today there is a whole industry around pushing drugs through your skin, and look, one seems to be stuck to my knee. With Iontophoresis, we go beyond simple diffusion to let a potential drive the molecule in. In my case, a potent steroid. It seems very non-green that it is OK to just chuck this in the trash. Does it help? Not sure.