How long does it take for facial slimming injections to show results?
Dec 18, 2021
Source: Cainiu Health
Dr. Liu Wan
Introduction
Facial Botox—i.e., botulinum toxin—injections, whether domestically produced or imported, typically begin to take effect within 2–3 days. However, because the masseter muscle is relatively well-developed and large in volume, most individuals experience initial results only after approximately one week. Full effects usually become apparent within 2–3 weeks and last for about 3–4 months, after which the effects of botulinum toxin gradually subside.
After receiving Botox injections for facial slimming, the face does not immediately become slimmer. Instead, temporary facial swelling commonly occurs, requiring a recovery period. Only after the botulinum toxin is absorbed by the skin will the face gradually appear slimmer. However, it is essential to strictly follow your physician’s instructions during treatment. Avoid using any allergenic medications during this time, as doing so may lead to serious complications—for which no one else can assume responsibility for your facial outcome. So, how long does it take for facial slimming injections to take effect? Below, we address this question.
How Long Does It Take for Facial Slimming Injections to Take Effect?
Facial slimming injections—commonly referred to as “Botox”—contain botulinum toxin. Whether domestically produced or imported, these preparations typically begin taking effect within 2–3 days. However, because the masseter muscles are relatively large and well-developed, most individuals experience initial results only after approximately one week.
Patients with broad or “heavy” facial contours due to masseter muscle hypertrophy often opt for facial slimming injections to achieve a more refined appearance. Early signs of efficacy manifest in two primary ways: First, some highly sensitive individuals may notice reduced chewing strength—particularly when eating very hard or sticky foods. Second, upon clenching the teeth (especially the posterior teeth), one may palpate the previously firm, prominent masseter muscle bulge, now noticeably softer and smaller—indicating that the botulinum toxin has begun exerting its effect. To achieve a stable, optimal result generally requires 2–3 weeks, with effects lasting approximately 3–4 months. Thereafter, the toxin’s effect gradually wanes, and the masseter muscle gradually regains its original size and tone. Repeat injections are necessary to maintain the slimming effect.
Additional Information: Post-Injection Care Instructions
After the procedure, patients should rest quietly for 20–30 minutes before leaving the clinic and avoid strenuous physical activity. For two weeks post-injection, avoid facial massage and hot baths or showers. Refrain from using aminoglycoside antibiotics (e.g., gentamicin). While sleeping, avoid applying pressure to the injection site to prevent unintended diffusion of the injected substance; additionally, do not lie flat for at least four hours following treatment. For benign masseter hypertrophy treated with botulinum toxin, intermittent gum-chewing is recommended for three days post-procedure—three times daily, each session lasting 15 minutes. Subsequent botulinum toxin injections should be spaced at least 6–8 months apart from the previous treatment. Should any adverse reactions or concerns arise after the procedure, promptly contact your physician or visit the clinic for evaluation.
The above outlines the typical onset timeline for facial slimming injections. We hope this information proves helpful to you.
