It usually takes 7- 14 days to see the obvious effect, but the specific time of the most obvious effect usually depends on the absorption of the effective components in the face-lifting needle and the hypertrophy of the masseter muscle.

Face-lifting needle, that is, botulinum toxin A injection, mainly acts on muscle tissue and is called face-lifting needle because it is often used to solve masseter hypertrophy. The professional name of face-lifting needle is botulinum toxin, which is a biological product and can be produced on a large scale through genetic engineering.