health benefit.
However, it’s important to distinguish between what a product claims in its advertising and what scientific evidence actually demonstrates.
Why Does the Patch Turn Dark?
This is probably the detail that most intrigues people who try these products.
After several hours of use, a patch may turn brown, black, or considerably darker than it was when first applied.
At first glance, this might appear to be evidence that something has been “extracted” from the body.
However, a change in colour alone cannot demonstrate that toxins have been
