How long does facial slimming injection last?
Dec 17, 2021
Source: Cainiu Health
Dr. Li Ruizhi
Introduction
Results from facial slimming injections become visible within a few weeks after treatment; however, the effects typically last only 6–12 months. Therefore, to maintain the original slimming effect, repeat injections are required. If subsequent injections are administered before the masseter muscle rebounds—approximately every six months—the facial slimming effect can be effectively sustained.
Having a large face is a common concern for many people. If facial enlargement is caused by excess fat, weight loss alone may suffice. However, if it results from hypertrophy of the masseter muscles, weight loss will have little effect. In such cases, botulinum toxin injections (“face-slimming injections”) can effectively reduce the size of the masseter muscles and achieve facial contouring. But how long do the effects of face-slimming injections last? Below, we address this question.
How Long Do Face-Slimming Injections Last?
Visible results from face-slimming injections typically appear within several weeks after injection. However, the effects generally last only 6–12 months. To maintain the desired slimming outcome, repeat injections are necessary. If follow-up injections are administered before the masseter muscles fully rebound—approximately every six months—the slimming effect can be well sustained, and significant muscle regrowth is unlikely. This is why some practitioners refer to “three sessions for permanent contouring.”
Additional Information: Important Considerations for Face-Slimming Injections
Face-slimming injections involve localized administration of botulinum toxin into the masseter muscles to treat masseter hypertrophy. After the procedure, patients should rest quietly for 20–30 minutes before leaving the clinic and avoid strenuous activity. Facial massage and hot baths or showers should be avoided for two weeks post-injection. Aminoglycoside antibiotics (e.g., gentamicin) should also be avoided. While sleeping, avoid pressure on the injection site to prevent diffusion of the toxin; lying flat should be avoided for at least four hours after treatment. For benign masseter hypertrophy, patients may chew sugar-free gum intermittently starting three days post-procedure—three times daily, for 15 minutes each session—to help maintain muscle tone. Repeat botulinum toxin injections should be spaced at least 6–8 months apart. Should any adverse reactions or discomfort occur post-treatment, please contact your physician promptly or visit the clinic for evaluation.
The above outlines how long the effects of face-slimming injections typically last. We hope this information is helpful to you.
