Yes, you're right. I've purchased the slimming patch from a trader here previously and ran it under tap water. Oil comes out as well. I doubt that the oil that forms on the patch is from our body. However, the patch may have other benefits

Exactly. I've actually purchased the patches a number of times and I realised that no matter how often you put them on, the "oil" will still be "sucked" out and it didn't have an effect on my weight, sleep whatsoever. So I ran it through tap water and oil comes out as well?!

It's totally ridiculous when I read posts from people claiming that they lost 1 inch off their hips etc etc when they wake up the next morning or so. The 1 inch loss may be due to many reasons like how it has been scientifically proven that many of us are 'taller' when we sleep as our muscles relaxes.

If anyone doubts this, just put some water on your slimming patch and you see see the "oil from your body" on the patch