Reason: The blackening of the old Beijing wormwood foot patch is not detoxification, but is soaked with sweat. Neither the residue of food digestion nor the waste produced by human metabolism can be called "poison". In addition, the human body excretes "waste" mainly through feces, urine, breath, sweat and hair, but the sole of the foot is not the main way.

Foot stickers often contain Zhu Gui, loquat leaves, peppers, tourmaline and so on. Judging from these components, it may play a role in promoting human blood circulation. In addition, because the product contains pepper, it will stimulate the soles of the feet to sweat, and this brown sticky substance will appear after the sweat contacts the foot patch. Not only that, but some people have done related experiments: pouring some water on the foot pad will also cause brown sticky substances on the foot pad, so those "black oils" are not oil and toxins sucked out at all.

Extended data:

In addition, it is very unlikely that the human body's oil and toxins will be discharged from the soles of the feet and the skin of the body through drugs. Human body fat can only be discharged by burning into energy or liposuction, and it is impossible to be directly sucked out of the body by drugs.

It takes about 2 hours for the operation to expel about one kilogram of fat, and the smallest fat particles can't be expelled through the skin. The sucked fat is yellow, not black. Therefore, it is impossible to expect to suck oil by sticking a foot patch.

People's Network-Do you detoxify when your feet are black? Be careful that this is a "cover-up" for merchants.

People's Network-Is it liposuction and detoxification to blacken the footpad? Experts say this is impossible.