Eurycoma Longifolia Root Extract Full Review and In Depth Look

Also known as Eurycoma Longifolia Jack, Tongkat Ali, Malaysian Ginseng, and to be honest about another 20 variations, Eurycoma Longifolia Root Extract is a herb that is grown in Malaysia, Indonesia, Thailand, and Vietnam.

It is commonly believed to work as an aphrodisiac and there is a lot of science to back this up.

Benefits of Eurycoma Longifolia Root Extract

A 2012 study by Ismail et al found that 300mg of Eurycoma Longifolia extract led to improved erections, improved libidos, and improved semen volume [1].

Libido & Erectile Dysfunction

While issues with libido and erectile dysfunction are not something that most guys want to talk about, it is worth considering supplementation with Eurycoma if you are having any performance problems.

Using a natural, premium testosterone supplement that contains a sufficient amount of  Eurycoma (plus other T-boosting ingredients) should definitely do the job.


While its abilities as an aphrodisiac are fairly well established, Eurycoma has many other potential benefits such as reduced stress, increased testosterone, fat loss, power output, and increased lean mass.

The evidence for these benefits is not as compelling, but these are early days.


Lower Cortisol

Cortisol is a stress hormone that can have many negative effects on the body, one of its biggest issues is that it can attack the testes, leading to a marked reduction in testosterone (the testes are responsible for most of the production of testosterone in the body).

Lowering cortisol in stressed males has been shown to prevent loss of testosterone, and can even result in a net increase in testosterone levels.

A study by Talbott, Talbott, George, & Pugh (2013) found that Eurycoma Longifolia can reduce cortisol production in moderately stressed people [2].

Increase Testosterone

This means that it can help to slightly increase testosterone levels in men who constantly suffer from stress. The study also found that supplementation led to less tension, anger, and confusion in stressed people.

Overweight Individuals

In the 2012 study we mentioned earlier [1], it was also found that overweight and obese subjects who took Eurycoma managed to lose a small amount of weight, though the reason for this is unknown. Potentially it could be due to the drop in cortisol, or the rise in testosterone.

Avoid Bad Sleep

Maybe taking Eurycoma helped subjects avoid bad sleep (which can lead to overeating and weight gain). Whatever the cause, there seems to be some evidence that Eurycoma can help with minor weight loss.

Studies have also shown that when combined with exercise, Eurycoma can help to increase the body fat losses and muscle mass gains.

This does not mean that you can expect to lose weight and gain muscle just by taking it, but if you are exercising already and you start to supplement with it, you might get better results.

Side Effects

There doesn’t appear to be any side effects of taking Eurycoma, however Webmd cautions pregnant and breastfeeding women to avoid it as there is not enough evidence that it is safe to consume [3].

Effective Dosage

According to the standard dosage of Eurycoma is 200-300mg at a 100:1 extract (20-30g of dry root) taken twice per day [4].

This was seen in the 2012 study we mentioned at the beginning which used 300mg [1].

Finding a product that contains the right amount of Eurycoma is crucial to achieving results. We wouldn’t recommend settling for any less.

Final Thoughts

You should consider taking Eurycoma if you are often stressed, have low testosterone, or in need of some assistance in the bedroom.

The other benefits may or may not occur, but should be seen as nice little bonuses to an effective supplement, rather than expected features.

If you can find this ingredient in a product, that would be an added bonus and cost effective!


[1] Ismail, S., Wan Mohammad, W., George, A., Nik Hussain, N., Musthapa Kamal, Z., Liske, E. 2012. Randomized clinical trial on the use of PHYSTA freeze-dried water extract of Eurycoma Longifolia for the improvement of quality of life and sexual well-being in men. Evidence Based Complimentary & Alternative Medicine 2012: 429268

[2] Talbott, S., Talbott, J., George, A., Pugh, M. 2013. Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjects. Journal of the International Society of Sports Nutrition 10:28



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