Premium Foot Pads - conveniently pre-stuck and a circular shape to fit on the ball of your foot - with wood and bamboo vinegar extract for vitality

These will definitely turn black if you wear them on your feet, but they also turn black if you expose them to any type of moisture.

While it's hard to tell if these pads are truly pulling toxins from the body, they are dark when I take them off in the morning. They are very sticky and stay put all night, yet are easy to remove in the morning.

This is a nice product. You can really see that the pads was black.

Good quality, feels great and helps much.