I have a lot of calves, so I get calf Botox every 4 to 5 months. If you have muscular calves, the effect is certain! When I looked at my legs from above, the inside was a bit curved, but now I have completely straight calves. But I've had it 4 times so far, and it's probably because I haven't been able to use my muscles. Since I started getting Botox, if I walk for a long time or run very fast, my calves get tired;; The effect is good, but I think you have to take into account the fact that you can't run for a long time or anything like that.