With the development of beauty technology, the most effective and popular non-surgical face slimming method is face slimming injection, but many people will ask, how long can the effect of face slimming injection last? BOTOX is mainly for the bilateral bite muscle hypertrophy, in a short period of time can achieve a thin face effect. This method only uses a small needle to inject the right amount of biological agents into the bite muscle area, unlike traditional surgery, there will be severe pain, face slimming needle without surgery, no trauma, no risk, no side effects, fast recovery, quick results, become people’s first choice for face slimming. How long can the effect of face-lifting injections generally last? The face slimming needle needs to be injected at intervals, and the effect will be superimposed with the superposition of the number of injections. Generally not more than 6 months need to be injected again, but it varies from person to person. At the same time, in order to get the best thin face effect, do not stop massaging the face after injection, and do not lie down immediately, and do not always shake your head, hard nuts food should also try to prevent, these will affect the maintenance time of the post-operative effect, so we should pay attention. Because of chewing habits, there will still be mild asymmetry on both sides after injection. A few people may be insensitive to the drug and the effect may not be obvious, so you should follow up after 2 weeks. Warm tips: The skin at the injection site is slightly red and swollen after surgery, which usually subsides after a few hours. a few people will have slight bruising at the injected site, but it disappears quickly. within 4 to 6 hours, it is better not to lie down to avoid the effective nutrient dispersion of the toxin. within 6 hours, you should not wash your face, do not wear makeup, do not be curious or touch the injection site, and should not exercise.