Clinically proven Nonyx Fungal Nail Clarifying Gel works differently than other toe nail fungus products - it breaks down and cleans out yellowing or dark keratin debris, where nail fungus thrives. As Nonyx cleans out keratin debris, the fungus goes with it Nonyx Fungal Nail Clarifying Gel has been clinically proven in a 9-month study to improve toenail clarity by 90%, making them clear and healthy-looking again with regular use. Keratin debris is what you see in discolored or damaged nails and this is where toenail fungus hides. By removing keratin debris, Nonyx also improves the appearance of lifted and thickened nails Made in the USA, Nonyx Fungal Nail Clarifying Gel is dermatologist-tested, even safe for diabetics with healthy feet and is a choice of doctors and podiatrists nationwide. The formulation is not tested on animals, is free of parabens and preservatives