Of course. Elf ears can be injected with hyaluronic acid, costal cartilage material and line carving. However, hyaluronic acid is the most widely used at present. Generally, 6-20 pieces of hyaluronic acid are used, which is also related to the situation of your ears. When it recovers, it is almost the same as normal hyaluronic acid ~ it usually lasts for about half a year, and better hyaluronic acid can last longer.