To use the Gelish Prohesion Nail Sculpting Powder, first, prepare your nails by cleaning and shaping them. Then, apply a base coat. Dip your nail into the powder and use a brush to smooth it out. Repeat the process if you want a thicker layer. For best results, follow up with a top coat. When using this powder, make sure your hands are dry and clean. Avoid contact with eyes and mouth. If it gets on your skin, wash it off immediately. To maintain your nails, keep them away from harsh chemicals. You can also use a nail oil to keep them moisturized and prevent them from drying out.