This video gives a good explanation of why it is important to choose a doctor who is board-certified whenever you are considering a cosmetic procedure of any kind.
This includes not only major operations, like facelifts but also such minor procedures as Botox injections and fillers. While there are many spas that offer these seemingly minor procedures today, it just makes sense to go to a highly qualified doctor who can give you the best possible results in the safest possible environment.