Yes, Botox can be recovered after face-lifting (face-lifting needle), which means that it needs another injection after six months in theory to maintain the effect. Some people can keep it for a long time after two or three injections. If you want to delay the recovery of masseter muscle, you should eat less hard and tough food. But clinically, we found that some people don't need to inject again after two or three times to maintain the effect, which means that the influence of Botox on Chinese characters' faces is long-term. The reason is that during the curative effect of Botox, the human body cannot overuse the masticatory muscles. If we can get rid of the habit of overusing masticatory muscles, after the curative effect of Botox, the thinner masticatory muscles will not hypertrophy and proliferate again.