Native to Southeast Asia, tongkat ali (Eurycoma longifolia) is a flowering shrub rich in phytochemicals like quassinoids, alkaloids, flavonoids, and bioactive steroids. Tongkat ali is one of the most popular herbal remedies in traditional folk medicine because of its purported benefits for sexual health. It’s touted as a remedy for erectile dysfunction (ED), low sex drive, and male infertility. The herbal supplement is also said to improve physical fitness, boost mood, and promote bone health.
Male Infertility 
Physical Fitness 
Tongkat ali is also marketed to athletes as an ergogenic supplement that increases muscle mass and strength, and improves endurance due to its testosterone boosting effects. Reduce Stress and Boost Mood & Bone Health.
 
https://www.verywellfit.com/the-benefits-of-tongkat-ali-89588