To use this AEON Top Gel Refill Kit, first make sure your nails are clean and dry. Apply the top gel evenly on your nails. Then, place your nails under an LED or UV light until the gel is completely dry. It dries faster than many other products, so you won't have to wait long. For best results, keep your hands steady while applying the gel. As for maintenance, avoid using your nails as tools to prevent chipping. If you need to refill, simply use the pre - filled 15 ml units provided in the kit. This kit is designed for professional use, so enjoy the long - lasting, high - shine finish it offers.