Vitamin booster shots are a quick and effective way to instantly boost energy, focus, metabolism, and the immune system. When vitamins are administered intramuscularly, it bypasses the GI system and provides increased bioavailability. Bioavailability is the degree and rate at which vitamins are absorbed by the body's circulatory system and able to have an active effect. Intramuscular injections are 70-80% more effective than taking oral vitamin supplements daily and they are immediate, perceptible, and last about two to three weeks. The entire booster shot process takes approximately 5 minutes, which is ideal for anyone looking to revitalize themselves on their lunch breaks.