Recently, more and more people consult face-lifting needles. Experts from Beijing Yezi Plastic Surgery Hospital told us that not everyone can face-lift by injecting a face-lift needle, and only people with masseter hypertrophy can enjoy this simple and painless new face-lift method. So how do you judge whether you are masseter hypertrophy? The method is simple, that is, bite the bullet. If the muscles of both cheeks can be pressed hard, it is masseter hypertrophy. This face shape can be achieved by injecting a face-lifting needle. But in some cases, it is not allowed to inject, such as pregnant or lactating women, people who are allergic to penicillin, people with systemic neuromuscular diseases such as local skin infection and severe myasthenia gravis, and it is not allowed to inject face-lifting needles. What is the effect of injecting face-lifting needle: 1. Experts from Yezi Plastic Surgery Hospital said that the effect of injecting face-lifting needle is obvious, and the effect can be seen after one week, and the best face-lifting effect can be achieved after three months. The masseter muscle will shrink by 30%, and the effect can last for several months at a time. If you want to keep it for a long time, you should inject it regularly. 2. Experts from the Leaf Plastic Surgery Hospital said that reducing or alleviating the movement of the masseter muscle will keep the face-lifting effect for a long time. Such as eating less chewing gum and melon seeds. 3. There is usually no obvious side effect after face-lifting needle injection, and it will not affect normal life and work after injection. There is no scar on the appearance after face-lifting operation, which does not affect the normal skin and muscle function.