The role of water light injection on the face, water light injection is mainly the use of the principle of the machine micro-needle, hyaluronic acid and the nutrients needed by the skin directly into the dermis, to stimulate the dermis of the collagen proliferation, to achieve the deep locking moisturizing effect, and at the same time, improve the dryness of the dermis, the phenomenon of dehydration, so that the skin to achieve rapid hydration. If you inject botulinum toxin into the water light injection, you can also achieve the effect of shrinking pores, so when you first start to contact the water light injection, you need to do it once a month for the first three months, and then once every 3-6 months to maintain it. However, you need to go to a regular hospital to have the injection treatment under a qualified doctor, and at the same time, you must pay attention to sun protection after the water-light injection treatment.