So, how often do you need a Vampire Facial to maintain your skin's optimum results? The answer varies all depending on how closely you follow the treatment's aftercare instructions. If you take good particularly care of your skin after the therapy, then the effects will last much longer. When done correctly, the results of a Vampire Facial can last for 6-8 months. With the initial course of treatments completed, you’ll only need to have the one maintenance injection every so often to keep those effects going and keep your skin looking great.