Anabolic properties of Tongkat Ali from its key bioactive ingredients (i.e eurycomanone, eurypeptides and glycosaponin) may benefit endurance by enhancing submaximal running performance as evidenced in studies. High saponin and eurypeptides in Tongkat Ali help regulate and optimize your testosterone levels during longer runs, allowing you to achieve further distance without premature muscle fatigue. Incorporating Tongkat Ali as a post-workout supplement also helps faster muscle recovery during your rest days, or as part of your 16-week marathon training plan leading up to the actual marathon race day.

For endurance runners, optimal testosterone levels is important to maintain strength and lean muscle sustenance, particularly in slow-twitch muscle fibers, which are essential for prolonged stamina and endurance. Our highly potent Tongkat Ali standardized hot water root extract is known to prevent testosterone drop in chronic endurance runners, or athletes who are highly exposed to exercised-induced hypogonadism (i.e low-T symptoms) that may impair the overall running performance.

In addition, elevated testosterone promotes protein synthesis, aiding in muscle repair and allowing runners to recover more quickly and train consistently with less downtime. This is especially valuable for avoiding overuse injuries and managing chronic muscle fatigue.