Botulinum toxin is a neurotoxic protein extracted from Clostridium botulinum bacteria, originally used to treat muscle spasms. In 1997, the U.S. FDA approved Botox® for injectable cosmetic use. Subsequently, China's drug regulatory authorities approved both domestically produced Hengli botulinum toxin and U.S.-made Botox® for injectable wrinkle reduction. Since then, botulinum toxin has gained popularity as a minimally invasive cosmetic procedure among beauty seekers.
Botox offers diverse cosmetic applications, including wrinkle reduction, facial slimming, and calf contouring. Wrinkle reduction remains its primary use, with common injection sites encompassing the glabella (between eyebrows), forehead, crow's feet, nasolabial folds, and neck. It also addresses facial asymmetry and hyperhidrosis. Recent years have seen growing research uncovering additional therapeutic applications.
Although botulinum toxin is a relatively mature technique for facial rejuvenation, cases of suboptimal results due to improper injection remain common. Injecting botulinum toxin demands high technical skill from the practitioner, with precise control over dosage and injection depth being crucial.Injecting too little yields minimal results; injecting too much can cause facial stiffness and sometimes asymmetry, such as one eyebrow being higher than the other. However, even if these issues occur, they can often be effectively improved through additional injections or by waiting for the Botox effect to wear off.
Therefore, the key to successful Botox cosmetic procedures lies in selecting an experienced injector. Additionally, clearly communicating your aesthetic goals to your plastic surgeon is crucial.