My best friend and I have both done it, all of which are functional fillings, but the principle is quite different. Hyaluronic acid is used as a physical filler to fill the depression. Children's eye acupuncture stimulates the production of collagen in deep skin and stimulates cell vitality. The effect of hyaluronic acid played by girlfriends is immediate, but it lasts for a short time and needs to be injected once every 4-6 months. It took me more than two weeks to get the effect, but it was natural and real, and the effect was more lasting. . If you don't understand, you can continue to ask