It depends on which substances are in the injection and how much water you drink and the amount of exercise you do.
For example, Vitamin B12 is a water-soluble vitamin, which means it easily dissolves in water and is NOT stored in the body.
All of the Vitamin B12 in the body is eliminated through the urine, typically between 1 to 6 days, depending on how active a person is and the amount of fluids they take in.
Our interactive ordering process will give you good estimate of how long the shots will last when you answer the questions regarding your water intake and exercise levels.