Our Nail Repair Solution contains Glycerin, Panthenol, Sodium PCA. It can repair nails, remove bacteria and protect them. Its usage is simple: STEP1, thoroughly clean and dry infected toes and fingers. STEP2, gently file the thick end of the fungal nail until it becomes flat or thin. STEP3, apply a thin layer of solution with a nail brush on the affected area. STEP4, apply another thin layer with a nail brush on the affected area. It can protect nails and toenails, making your nails and toenails look more stylish