Our line of NSF certified for sports supplements is formulated to help you step your game up. Whether its going into overtime, extra innings, or just trying to squeeze out those last few reps, we have sports supplements designed to give you that extra push. Our pre-game formula is a great example of P4’s mindset towards developing quality sports supplements. Banned substance free and packed full of well researched supplements, it’s like lighting in a bottle. P4: Proven for sports.