Our nail repair solution contains glycerin, panthenol, and PCA sodium. It can repair nails and provide antibacterial protection. Its usage is simple: Step 1, thoroughly clean and dry the infected toes and fingers. Step 2, gently file the thick end of the fungal nail with a nail file until it becomes flat or thin. Step 3, apply a thin layer of liquid to the affected area with a nail brush. Step 4, apply a thin layer of liquid to the affected area with a nail brush. And it can protect your nails and toenails, making them more stylish.