The Original Fungi-Nail Toe and Foot Nail Solution has a simple formula and is generally safe for use, all-natural, and highly effective. However, there are no product reviews to support these claims. Without any feedback, we could not be certain about the overall effectiveness of this product. There are so many products out there designed to eradicate athlete’s foot that we felt this product was lacking in terms of ingredients that it contained. We would liked to have seen more clinically proven ingredients and soothing herbal extracts for skin and nail regeneration, included in their formula. Plus, many manufacturers offer a clear money back guarantee should the product not work as expected, we could not find a comprehensive guarantee for this product, which is always a minus for us.