Review (5/5): I was skeptical
I usually do one side of my hair before the other so I can see the difference. Shinier, smoother hair on one side, then I do the other. Not a lot shinier, but enough so that I notice. Plus, I found that I was having microheadaches that this is amazingly quick at relieving. Now I'm getting fewer of them. Great brush. Pop the bristle head off to change batteries or to clean the bristles. I love it.
UPDATE: I still like this thing. I can see accumulated beneficial changes in the condition of my hair. I can smell a whiff of the negative ions every now and then and I have much fewer micro headaches. I still love this thing!