First Endurance introduced the world to Optygen back in 2002. Since then, there have been a number of additional studies done that show Optygen reduces cortisol levels. By modulating cortisol, athletes experience better recovery, an increase in VO2, improved oxygen utilization and enhanced performance
PEZ Reviews: The hard training we do on the bike is only the stress that we impose, and is only half of the training equation. To maximize our ability to tolerate and recover from that hard training, recovery and nutrition are important tools. One path to improving nutrition can be via supplements, and First Endurance targets top-end performance with their OptygenHP.
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