Adaptogens are herbs that have been shown to extend endurance and bolster the immune system. Its use in exercise resulted from reports that mountain climbers used ciwujia to improve work performance at high altitudes. Based on these initial observations, PacificHealth Lab scientists conducted studies showing that ciwujia is a safe and effective ingredient to boost performance. Since its original launch, it has been used by tens of thousands of athletes as a workout supplement. The usual dose is two capsules once per day and noticeable results are usually quite apparent after 3-4 weeks.