If you want to know more about how long the effects of Botox last for and how often you will need to have Botox injections, then you can find this out here. To get the best possible results that are long lasting, you should seek Botox treatment from a reputable, board certified doctor. The doctors at a top Boston Medical Spa have lots of experience at administering Botox and very happy patients! Read more about how long Botox will last for and decide if it is right for you.