Our nail care solution contains glycerin, panthenol, and sodium PCA. It can repair nails, disinfect and protect. It's easy to use: STEP1, thoroughly clean and dry infected toes and fingers. Step 2: Use a nail file to gently file the thick end of the fungal nail until it becomes flat or thin. Step 3, use a nail brush to apply a thin layer of liquid on the affected area. Step 4, apply a thin layer of liquid on the affected area with a nail brush. It can also protect your fingernails and toenails, making them more stylish.