Many people worry about side effects from facial slimming injections. In reality, the principle is quite simple: it blocks nerve impulses to muscles, relaxing overly contracted muscles and paralyzing overdeveloped ones. By paralyzing muscles, it achieves "disuse atrophy," causing thickened, hypertrophied muscles to shrink and resulting in a slimmer face.Patients may experience noticeable local swelling and warmth after injection, which is a normal response to botulinum toxin administration. Generally, facial slimming injections carry minimal risk of side effects, so patients need not worry unnecessarily.
Side effects are rare. Patients who receive injections at reputable clinics and follow professional post-treatment guidance typically experience no adverse reactions.Results typically become noticeable within two weeks to a month after treatment and generally last for 5-10 months. Avoiding frequent chewing motions (such as chewing gum or cracking seeds) can help prolong the effects.