Peak-O2WHAT IS PEAKO2? PEAKO2 IS AN ORGANIC CERTIFIED COMBINATION OF SIX ADAPTOGENIC MUSHROOMS GROWN IN THE U. S. PEAKO2 ALLOWS USERS TO "ADAPT" TO AND OVERCOME PHYSICAL AND MENTAL STRESS, INCREASING POWER AND ENDURANCE. IT APPEARS TO HAVE A SIGNIFICANT IMPACT ON ENDURANCE PERFORMANCE AS OXYGEN CONSUMPTION HAS BEEN SHOWN TO INCREASE SIGNIFICANTLY IN TWO STUDIES. PEAKO2 ALSO APPEARS TO IMPROVE SUBMAXIMAL ENDURANCE PERFORMANCE AS UP TO 2G DAY HAS BEEN SHOWN TO