In today's rapidly advancing cosmetic surgery field, achieving an enviable oval face is no longer difficult. Currently, facial slimming injections offer a quick solution. However, since these injections require long-term maintenance, one may wonder: Can prolonged use of facial slimming injections cause side effects?
Facial slimming injections, essentially botulinum toxin injections, primarily target muscle tissue. Commonly used to address enlarged masseter muscles, they are thus termed "slimming injections."The mechanism of facial slimming injections involves administering the solution into areas of muscle hypertrophy. This causes the targeted muscles to relax and atrophy, reducing masseter muscle activity and shrinking their size, thereby achieving a slimmer facial appearance.For treating masseter hypertrophy, injections are typically administered at one to several sites per side. The injection process should be as slow as possible. No local massage or other post-injection care is required. Some individuals may experience localized swelling and warmth, which is normal and not cause for concern. As a muscle-injected medication, facial slimming injections have a very high safety profile with virtually no side effects.
While generally safe and side-effect-free, some women experience complications from unqualified clinics. These include facial asymmetry, muscle weakness at injection sites, drooping eyelids, or sagging eyebrows—all resulting from practitioners' lack of anatomical knowledge and imprecise injection techniques.Therefore, the absence of side effects from facial slimming injections largely depends on the hospital and doctor chosen by the patient.