Our nail repair solution contains Glycerin, Panthenol, and Sodium PCA. It helps repair nails and provides antibacterial protection. The method of use is very simple: Step 1, thoroughly clean and dry the affected toes and fingers. Step 2, gently file the thickened part of the fungal nail with a nail file until it becomes flat or thin. Step 3, apply a thin layer of the liquid to the affected area using the nail brush. Step 4, let it dry. It also protects and strengthens your nails and toenails, giving them a healthier and more polished appearance.