The manufacturers of bamboo vinegar foot pads emphasize the fact that when the pads are placed on the feet they are clean and white, and when they are removed they are black. They imply that this is proof that the pads have extracted toxins form the body, whereas, according to Quackwatch.com, the darkening is caused by a chemical that becomes darker when it reacts with moisture.
A broad range of health claims are made for detox foot pads. Many state they can remove toxins such as heavy metals from your body and that they can reduce hypertension or even help you to lose weight. According to Dr. Lawrence E. Gibson, M.D., there are no scientific studies available to support these claims or any evidence that detox foot pads are at all effective.
No Medical Evidence.
According to the Global Healing Center, bamboo vinegar, known as chikusaku in Japan, is an liquid that forms during the process of producing bamboo charcoal. In Japan, organic bamboo vinegar is often diluted and used as a skin toner and hair conditioner. It is believed to have many health benefits, such as being able to eliminate foot odor, soften the skin, relieve itching and insect bites and improve blood circulation.