The FDA has never approved this product therefore any claims made by this company backing the product are without merit and there is no scientific evidence that this product works, there's a lot of negative remarks about this product if you Google consumer reports @ Kinoki. Also, there are no instructions with this product and the information about returning this product is un-readable on the lower half of thelabel enclosed with product
I'm currently in my first use of the product and I have peaked to see the progress. Wow. The only thing it's missing is a small set of directions such as a recommended minimum time of use or wash your feet first.