How soon is the effect of瘦脸针 most noticeable?

Facial slimming injections, primarily composed of botulinum toxin, work by being injected into the masseter muscles to temporarily weaken their contraction ability, resulting in a softer and more refined facial contour. Generally, the effects of facial slimming injections do not appear immediately, but rather develop gradually over time.

The effects typically begin to manifest within 24 to 72 hours. During this period, the patient may feel weakness in the muscles when chewing, which indicates that the botulinum toxin is beginning to take effect. As time progresses, around one month after the injection, the muscles begin to atrophy due to disuse following paralysis, and the slimming effect starts to become gradually visible. Around the third month, the slimming effect often reaches its peak, showing the most noticeable results.

The duration of the effect varies among individuals, generally lasting from 3 to 6 months. Repeat injections may be necessary thereafter to maintain the desired results. Additionally, choosing a legitimate medical facility and an experienced physician for the injection, following medical advice, and properly caring for oneself post-treatment are important factors in ensuring the safety and effectiveness of facial slimming injections.