Hello, the main component of the face-slimming injection is botulinum toxin type A. Its function is to block the nerve impulses that cause muscle contraction, reduce the activity of the muscles that cause frown lines, and make the patient's face smooth and harmonious. Beautiful. The therapeutic dose used in face-slimming injections is relatively small, and it reaches the diseased area directly through intramuscular injection to exert a therapeutic effect. It is recommended that you go to a regular professional hospital for examination and treatment.