After face-lifting needle injection, it blocks nerve impulses of nerves and muscles, paralyzes over-developed muscles, and makes facial muscles atrophy, thus achieving the effect of face-lifting. The main component of face-lifting needle is botulinum toxin. The full name of botulinum toxin is botulinum toxin. As a therapeutic drug, botulinum toxin A has been used in clinic for more than 20 years, and no serious adverse reactions have been reported so far. If illegal drugs are used, the injection amount is too large, which is easy to cause botulinum toxin poisoning. If you lose face, it may also cause asymmetry between your left and right faces. Therefore, you must go to a regular hospital or institution for related injections. As long as the operation norms are proper, there will generally be no major problems.