The first needle can lose 2 cm, and it is obvious. Plastic and cosmetic experts said that the injection of stovepipe needle can make the calf shrink 1-2cm, and the effect of stovepipe needle is to only reduce muscle without losing fat. The specific amount of weight loss varies from person to person, and the prominent muscle parts are generally lost, which will not be effective immediately after injection. Generally, there is a process for drug absorption to take effect, and the effect will be obvious after one week. After three months, another injection can enhance the effect. It is enough to inject the stovepipe needle within 200 units at a time. Too much stovepipe needle injection will do harm to the body and easily cause poisoning. Common Botox injections are generally 50u per bottle or 100u.

There is a strict limit to the dose of stovepipe needle at a time, so you can't be greedy. The lethal dose of botulinum toxin to human body is 2000~3000u/ time, with U as the unit, a bottle of botulinum toxin is 100 unit, and a bottle stands at 50 units and 100 unit. If you inject 20~30 bottles at a time (100 unit/bottle), something will happen. Therefore, we should not blindly pursue the effect of stovepipe acupuncture, otherwise it is likely to cause poisoning. In addition to dosage, it is also important whether the location, depth and angle of botulinum toxin injection are appropriate. Clinically, due to improper operation by unqualified personnel, some women's mouths are slanting and their eyes are slanting, becoming "mask faces". In severe cases, even respiratory muscle paralysis and dysphagia occur, and immediate first aid is needed to escape.