Tongkat ali is an herbal supplement that may boost testosterone, relieve stress, and improve body composition, but it may also cause DNA damage and mercury poisoning. Learn more about its potential uses, risks, and recommended dosage from this article. Eurycoma longifolia (commonly called tongkat ali, Malaysian ginseng or long jack) [3] is a flowering plant in the family Simaroubaceae. It is native to Indochina (Cambodia, Laos, Malaysia, Myanmar, Thailand and Vietnam) and Indonesia (the islands of Borneo and Sumatra), [4] but has also been found in the Philippines. [5] The plant is a medium-sized slender shrub that can reach 10 m (33 ft) in height, and is often unbranched. The root has been used in traditional medicine in Southeast Asia ... Tongkat ali (Eurycoma longifolia), which is also known as longjack, is often touted for its sexual health benefits, such as improving erectile dysfunction and male fertility. What is Tongkat Ali? Eurycoma longifolia, also known as Longjack, Pasak Bumi, or Tongkat Ali, is an adaptogenic herb with a long history of use as a traditional medicine. Contrary to popular opinion, Tongkat Ali doesn’t increase testosterone levels in most fertile men. However, it can increase libido, lean mass, and a few other things that are usually associated with higher testosterone levels. This article is about the main benefits of Tongkat Ali, its potential side effects, the best ...