Why do I need to take all six products if some of them contain the same ingredients?

Each formula was created with a specific benefit in mind. There may be similar ingredients in some products; however, the formulas work together as a system to provide maximum benefits. You can also customize product usage according to your activity and endurance level. The GPS product line is also uniquely suited to support the activity cycle and circadian rhythms of the body that affect the growth and maintenance of lean body mass.