Improve Your Workouts! Dietary Supplement Enhance Performance Boost Energy and Endurance Extend Time-to-Exhaustion Elevate Peal Power Output Blend of 6 Mushrooms Paleo Approved for IKDiet Phase 1 & Phase 2Peak02 is a proprietary blend of six mushrooms which allows serious athletes to overcome physical and mental stress. Specially formulated to elevate peak power output, improve V02 max and extends time-to-exhaustion for longer, stronger, more effective workouts.