Pointless
I was skeptical getting these having heard mixed reviews.  I've used this product two nights in a row.  The first night it was completely black when I peeled it off.  Gross.  My one complaint was that I didn't sleep well.  I figured that was a fluke.  The next night it happened again, so I took it off in the middle of the night after about 4 hours. The outside rim of each patch was black but the middle was still white.  I wasn't sure if it was my sweat turning it black or toxins coming out.  I decided to pour a little water on the white patch... It turned black.  I will say, they are comfortable to wear and I didn't have any trouble getting them off.  Each packet does come with 2 patches so you are actually getting 10 packets per bag and they send two bags.
Rating: 2 stars