Rangii Toenail Fungus is a topical serum consisting of 20 nutrients that help to strengthen, rejuvenate, and improve nail health. It helps to combat brittle nails and toenail fungus also known as onychomycosis. Rangii Toenail Fungus contains 100% natural ingredients. Moreover, the Rangii Toenail Fungus is manufactured in an FDA-approved facility while following all good manufacturing practices so it is safe to say that the product is free of any contaminants and safe.