According to Shuguang experts, botulinum toxin is used to block the transmission of nerve signals between nerves and muscles, so as to achieve the purpose of face-lifting and plastic surgery. Botulinum toxin face-lifting principle: Botulinum toxin injection blocks nerve impulses of nerves and muscles, paralyzes the over-developed muscles to make them contract, and makes the originally hypertrophy muscles contract. After the masseter muscles become smaller, the face will naturally become thinner. Face-lifting people who are not suitable for injecting botulinum toxin: not suitable for pregnant women, lactating women and people who are allergic to penicillin, and also prohibited for patients with systemic neuromuscular diseases such as local skin infection and myasthenia gravis. Some things to pay attention to after injecting face-lifting needle are: 1, face-lifting with botulinum toxin may cause chewing weakness and pain after a few days. 2. Don't eat hard-shell foods after face-lifting with botulinum toxin. 3, fast spicy, seafood, avoid alcohol and tobacco within a week. 4. Facial massage, hot compress and rubbing are prohibited within one month after botulinum toxin thin face. The above is the introduction of Shuguang experts on the face-lifting principle of botulinum toxin. Are you still worried about your face being too fat? Botulinum toxin face-lifting needle is a good choice for your face-lifting.