Botox injections can only improve the shape, that is, soften the inner and outer contours of the calf. The effect on the circumference of the calf is minimal. It is not effective for calves with a lot of fat. It is good for calves with obvious muscle protrusion. Generally, the total amount of each calf is 100 units. After the injection, the circumference will not be improved much, but the inner and outer contour of the calf will be softer and the curve will be beautiful. After injection, rest for two days and avoid sports that exercise the calves. There are usually no significant side effects. The effect of the drug usually lasts for six months. A supplemental shot after three months can significantly extend the duration of the drug effect. There is no ideal method at present. Generally, the maintenance time will be gradually extended after three injections.