To use the Gelish Prohesion Nail Sculpting Powder, first, prep your nails by cleaning and shaping them. Then, apply a base coat and let it dry. Dip your brush in the liquid monomer and then into the powder. Start applying the powder mixture to your nails, building up the desired thickness. Use a buffer to smooth the surface once it's dry. For best results, make sure to work in a well - ventilated area. When it comes to maintenance, avoid exposing your nails to harsh chemicals. You can use a nail oil to keep them moisturized. If you notice any lifting or damage, it's best to have your nails redone by a professional.