The main ingredient is botulinum toxin, which can make our body’s muscles produce a certain atrophy effect, so it can achieve the effect of a thin face, so what are the hazards of playing face slimming needles? 1, because the botulinum toxin of the face slimming injection can make the muscle atrophy effect, after the injection bite force slightly decreased, does not affect the normal eating and talking. 2, when playing face slimming injection, if the use of incorrect methods, no control of the dose or site is not precise enough, it is easy to affect the effect, and even likely to be mistakenly into the blood vessels, damage to nerves, hematoma and other situations, these are actually avoidable. 3, now there are some unqualified beauty salons injection site is not accurate, or the use of concentration dose is too large, often lead to eye face sagging, local swelling and some other phenomena, but also likely to cause swallowing difficulties, so the face will become stiff, smile is not natural, etc.. The hazards of face-lifting injections still exist, so we must minimize the harm, want to become beautiful must pay the price, must choose a regular hospital and experienced doctors, can not be greedy for cheap and choose an irregular hospital, otherwise it is easy to cause more harm to the body.