This is a very good question. Because we don't understand, we all have such concerns. Hou Zhonghua, director of Rihao Meilihua Medical Beauty Plastic Surgery Department, gave a detailed answer. In medicine, injection cosmetology refers to "micro-carving the face through biological products or derivatives of biological products to change the fine structure." Director Hou said: At present, there are three main types of biological products or derivatives of biological products: botulinum toxin, hyaluronic acid and collagen. Among them, botulinum toxin can temporarily paralyze nerves and is suitable for dynamic wrinkles, such as crow's feet at the corner of the eye, Sichuan-style lines on the forehead, and head-lifting lines. Its side effect is that the muscles that people are worried about will become stiff, but how long the stiffness lasts depends on the injection amount, injection point, injection technique and whether the medicine used is regular.

If the wrinkles are already deep, not only botulinum toxin, but also hyaluronic acid and collagen, which play a filling role, should be used. In addition to filling wrinkles, the latter two have certain facial shaping functions, such as filling nasolabial groove, rhinoplasty, chin augmentation and filling various facial depressions. The main difference between them is that hyaluronic acid can replenish water, while collagen mainly increases the elasticity of skin.

If the face is dry, wrinkled or sunken, it is suitable for injection of hyaluronic acid; If the skin is not dry, but there are many wrinkles or depressions, it is suitable for collagen injection.

Injection beauty is not a needle to stay young forever. Chen Guangyu explained that botulinum toxin, hyaluronic acid and collagen are maintained for about six months to one year after injection. After this period, I will go back to the hospital for makeup. Botulinum toxin will produce antibodies when it is finished. There are more and more antibodies in the body, and the fighting time will be shortened. In the end, it may take three or four months to make up; Hyaluronic acid and collagen do not have this problem, and the patch does not mean dependence.

Injection beauty should choose regular plastic surgery hospitals and products from regular channels. At present, there are two kinds of legal Botox in China: domestic Hengli and imported Botox. I hope it helps you. .