Well, if it's a 'diet patch' then fuggetaboutit.
It never fails to amaze me - it's easy enough to just buy some green tea (even the good stuff doesn't cost all that much) brew a cup and drink it...and yet the diet product marketers will find a way to make that sound like it 'just isn't enough'.
I haven't seen anything that says that 'diet patches' are effective - in fact, there are a lot of diet patch scams, some of which you can read about at this link
I dunno...I guess people know that patches work with people trying to stop smoking, so they figure that a 'diet patch' would work...
Meanwhile - check out this website:
Red Flag Bogus Weight Loss Claims