Facial thinning injection is generally not recommended for children. After children reach 18 years old, they can have facial thinning injection after consulting a professional doctor if necessary. After 18 years of age, the growth and development are basically mature, and the enlarged bite muscle may cause the face to be wide, at this time, if there is a requirement for the shape of the face, you can have a slimming injection, but you must consult with a professional doctor and follow the doctor’s instructions to have the injection. Face-slimming injection is usually not recommended for children before the age of 18, because at this time is still in the growth and development period, the facial bones have not been completely shaped, premature injection of face-slimming injection although there is a certain effect, but at this time is still in the stage of growth and development, it is difficult to achieve the best results. It is recommended not to play too early face thinning injection, so as not to cause adverse effects, everything should be safe for the premise of playing thin face injection need to go to a regular hospital, so that the safety and effect can be guaranteed.