Men's Health


Also known as Long Jack, Tongkat Ali (Eurycoma longifolia) has an ancient reputation as a herbal aphrodisiac. Its name means "Ali's staff or walking stick" in reference to its effects on male sexual health. In  numerous scientific studies the many benefits of Tongkat Ali on testosterone, male fertility and sexual function have been extensively researched (see scientifically proven effects at the bottom of page).

Rainforest Herbs was the first in the world to develop Tongkat Ali into modern dosage form and register with the Malaysian Ministry of Health. Our extensive practical experience with Tongkat Ali assists greatly our understanding on the effects of this most remarkable herb on human health!

Since 1995 we have focused on developing professional Tongkat Ali products for the global natural health market. In this time we have succeeded in getting this previously unknown Malaysian herb taken seriously, not just as an effective libido / aphrodisiac herb, but also as a natural androgenic hormonal support for men involved in sports such as; weight lifting, bodybuilding, martial arts and all those desiring to maximize their usable testosterone levels within the normal upper range as we age.

Tongkat Ali is 100% natural and has been used by numerous athletes without fear of failing any drug tests! More importantly, as the herb contains no testosterone but is only converted by your body into its own testosterone, it does not effect in any way your natural production and even after you stop the levels remain at a higher rate for some time. Also, Tongkat Ali reduces sex hormone binding globulin and estrogenic compounds that reduce the amount of available testosterone which is especially important as we age.

As men have different requirements at different stages in their life and physical health we have developed a range of Tongkat Ali products, each with its own special formulation and therapeutic indication. Check out our Tongkat Ali info pages for more info on choosing the best Tongkat Ali product for you.

 Scientific Research on Tongkat Ali has revealed:

  • Tongkat Ali produces an elevated testosterone level
  • Tongkat Ali increases sperm quality and quantity
  • Tongkat Ali increases male fertility
  • Tongkat Ali elevates the percentage in sperm motility rate
  • Tongkat Ali is a natural energizer
  • Tongkat Ali safely & meaningfully boosts androgen levels
  • Tongkat Ali improves strength during exercise and has an anabolic effect on muscle growth
  • Tongkat Ali decreases sex hormone binding globulin (SHBG) allowing for higher available testosterone
  • Tongkat Ali reduces the conversion of testosterone into estrogen (aromatization)
  • Tongkat Ali improves sexual dysfunction in men without side effects
  • Increased fat free mass
    Decreased % fat
    Increased arm circumference
    Increased muscle strength
  • When used in conjunction with an exercise /  weight training regime, Tongkat Ali accelerates:
  • Tongkat Ali increases cellular energy production through glycolysis and oxidative phosphorylation

Only the highest quality wild Eurycoma longifolia (Tongkat Ali) roots are selected by our Master Herbalist and only these are used in our highest potency Tongkat Ali extract. Since 1995, we have been formulating and manufacturing Tongkat Ali products giving us more experience in Tongkat Ali than any other Company in the world.

As evidence to our commitment and professionalism, our products are sold through all major pharmacy chains, independent pharmacies and major supermarket chains in Malaysia as well as in Japan and China. When buying Tongkat Ali it is important to look for the Rainforest Herbs brand only.



也被称为长的杰克,东革阿里(Eurycoma longifolia)有一个古老的声誉作为一种草药的春药。它的名字的意思是“阿里的杆或拐杖”在参考其对男性性健康的影响。在大量的科学研究东革阿里对睾酮,男性的生育能力及性功能的好处已被广泛研究。




由于男性在他们的生活和身体健康的在不同的阶段有不同的要求,我们已经制定了一系列的东革阿里产品,每一个有自己的特殊配方和治疗适应症。请到我们的东革阿里的信息页查看更多信息, 为您选择最好的东革阿里产品。


  • 东革阿里生产升高睾酮水平
  • 东革阿里提高精子质量和数量
  • 东革阿里提高男性的生育能力
  • 东革阿里在精子活动率提升百分比
  • 东革阿里是种天然焦
  • 东革阿里安全和意味深长提高雄激素水平
  • 东革阿里在运动时提高强度,肌肉生长的合成代谢作用
  • 东革阿里减少性激素结合球蛋白(SHBG),允许更高可用的睾丸激素
  • 东革阿里减少睾酮转化为雌激素
  • 东革阿里,无副作用的提高男性性功能障碍
  • 增加不含脂肪质量,并减少脂肪百分比
  • 增加肌肉的强度及大小

选择我们的主郎中,只用最高质量的野生东革阿里根(Eurycoma longifolia),我们只使用这些效能最高的东革阿里提取物。自1995年以来,我们已经制定和制造东革阿里东革阿里产品,在世界市场上,我们比其他任何公司更有多的经验。