Using this Gelish Prohesion Nail Sculpting Powder is easy. First, make sure your nails are clean and dry. Apply a base coat and then dip your nails into the powder. You can add more layers for the desired thickness. When applying, it will self - level on its own, so you don't have to worry too much about unevenness. Remember, keep it away from children and pets. Store it in a cool, dry place to maintain its quality. After use, clean your tools properly. If you notice any allergic reactions, stop using it immediately and consult a professional.