First of all, there are only two main active ingredients in lipolysis: phosphatidylcholine and deoxycholic acid. Phosphatidylcholine is an amphoteric surfactant that can form oil-in-water emulsions, thus emulsifying and breaking down fats and oils, and is used in the prevention and treatment of atherosclerosis. Deoxycholic acid is often used in scientific research as a lipase accelerator and proteolytic agent. Although phosphatidylcholine has been registered in Germany and Russia for a long time, it is only used for intravenous injection for the treatment of fat embolism, hyperlipidemia, atherosclerosis, etc. It is not licensed in the field of cosmetic treatment. China’s drug supervision network can not check the information of this type of drugs, regular hospitals do not provide lipolysis needle treatment, because its effect has a great uncertainty, the reason why it is so deified, everything is profit-driven commercial operations. The main ingredient of the face slimming injection is botulinum toxin, which is injected into the biting muscle to make the muscle atrophy, resulting in a reduction in the size of the biting muscle, so as to achieve the effect of face slimming, the country’s major cosmetic surgery hospitals can be injected.