After Hengli's face-lifting needle was opened, the botulinum toxin failed for 2 hours. Therefore, in many plastic surgery hospitals, two people use one bottle at the same time to avoid waste. If refrigerated, the storage time can be moderately extended.
At present, the countries that can produce botulinum toxin in the world are the United States, Britain, China and South Korea. Botox produced by Allergan Company in the United States, represented by Sushiko in the United States, Dysport produced by Speywood Company in the United Kingdom, and Hengli brand Botox produced by China Institute of Biological Products. In China and Beijing, Beijing Meilai Medical Beauty Institution is a formal designated institution. Botulinum toxin is a neurotoxin, which can block the nerve impulse between nerve and muscle, relax the over-contracted small muscle, and then achieve the effect of wrinkle removal. It was first used in combat and used in medicine to treat facial muscle spasm. 1986, Canadian scientists found that it was extremely effective in eliminating wrinkles, which triggered a Botox frenzy in the beauty industry.