Gave me a horrible migraine
I tried a free sample of it.  A few hours after putting it on I started to get a migraine, which I don't regularly it.  It wasn't until the next day and my migraine was still there, with no relief at all, I had remembered about the chip. An hour after I took off the chip, my migraine was finally gone.  Also, the chip made me more tired than usual.  I will never use it again.
Rating: 1 stars