Botox selectively inhibits acetylcholine release at the neural synapse. When injected, the botox binds to the receptor and prevents the release of acetylcholine. However, there is still remaining acetylcholine that has already been released. It takes about 5 days for the remaining acetylcholine to be... more







10 posts
22 Oct 2008
Botox effect starts 2-10 days after you receive it. Moving the target muscles (e.g. frown after your lines between eyebrows are treated) helps the effect to show sooner. There is no known limit as to how long you can get botox for. The follow up treatments sometimes require less Botox than the very first treatment.