About Tongkat Ali - Eurycoma longifolia


What is tongkat ali (long jack)?


Tongkat Ali (Eurycoma longifolia), also know as Long Jack, is a tall, slender evergreen shrub-tree commonly found in Southeast Asia, native to Indonesia and Malaysia. The plant parts have been traditionally used for its aphrodisiac, antimalarial, antidiabetic, antimicrobial, and antipyretic activities.  The active compounds found in Tongkat Ali improves sexual abilities and virility.

Tongkat Ali Tree
Tongkat Ali
What are the benefit of tongkat ali?


Tongkat ali is a testosterone booster herb. It increases your body's free testosterone bioavailability.  Testosterone is a sex hormone that plays important roles in the body. In men, it’s known to regulate sex drive (libido), bone mass, fat distribution, muscle mass and strength, and the production of red blood cells and sperm.


A search in US National Library of Medicine National Institutes of Health has many articles written on the research done on tongkat ali.  below are some of them:

Tongkat Ali as a potential herbal supplement for physically active male and female seniors

Tongkat ali, as testosterone booster for managing men with late-onset hypogonadism

Eurycoma longifolia Jack in managing idiopathic male infertility

9-hydroxycanthin-6-one induces penile erection and delays ejaculation


In studies under the Malaysian National Biotechnology Directorate coordination between research teams from Malaysia and the Massachusetts Institute of Technology (MIT), the following actions of Tongkat Ali on male health have been stated from their research: Raising testosterone naturally promotes physical and mental well-being


  • Elevated free testosterone level

  • Improved erectile strength without side effects

  • Increase in male fertility, sperm quality and quantity

  • Natural energizer

  • Safely boosts androgen levels

  • Improves strength during exercise and has an anabolic effect on muscle growth

  • Decrease in sex hormone binding globulin (SHBG)

How does tongkat ali works?


Tongkat ali works by increasing levels of the hormone testosterone naturally. Testosterone is primarily responsible for the growth and development of male reproductive organs.  Testosterone deficiencies can lead to muscle weakness or sexual disorders, such as erectile dysfunction. 


Tongkat Ali reduces the effects of ageing on the male reproductive system by increasing your body's free testosterone bioavailability via 3 essential mechanisms.

  • Stimulating the secretion of Luteinzing Hormones (LH) which in turn stimulates the Leydig cells of your testicles to produce testosterone.

  • Reducing the conversion of Testosterone to Estrogen (aromatization),

  • Decrease in sex hormone binding globulin (SHBG)

The net result of these 3 effects is an increase in available testosterone.


Eurycoma longifolia are used for treating erectile dysfunction (ED), increasing interest in sex, male infertility, boosting athletic performance, body building, and reducing body fat.

Tongkat Ali Slices
Tongkat Ali increases my testosterone, but will that make me aggressive?


Raised testosterone level does not cause aggressiveness instead it induce a sense of mental well being.  In fact a balance testosterone has an anxiety relieving effect.  Testosterone is an important male hormone.  A male begins to produce testosterone as early as several weeks after conception. Testosterone levels rise during puberty, peak during the late teen years, and then level off. After age 30, it’s normal for a man’s testosterone levels to decrease slightly every year.  Testosterone levels affect men from the reproductive system and sexuality to muscle mass and bone density. It also plays a role in certain behaviors, such as risk-taking behavior.  Men who have testosterone levels that are higher than average may experience both benefits and drawbacks. The benefits include normalizing blood pressure and lowering the likelihood of obesity and heart attacks. However, there is a tendency for such men to consume more alcoholic beverages, and they are more likely to smoke. According to some researchers, the higher the testosterone level, the more likely men are to participate in risk-taking behavior.  Therefore is important for man to maintain a balance testosterone level as they age.

How do I know I am getting the real tongkat ali?


Tongkat Ali has a distinctive bitter taste.  One way of telling if the product is real is to taste it.  If it doesn’t have the bitter taste, is probably faked.  However the extract of tongkat ali is not as bitter as taking the slices directly by soaking it in warm water.

Tongkat ali contains quassinoids, which are a group of compounds extracted from plants of the Simaroubaceae family, which have been used for many years in traditional medicine.  Quassinoids is probably the most bitter substance on earth.


By using freeze drying technology, our tongkat ali extract is able to maintain it's original natural color yellow, preserving its original taste and smell. Therefore, you can be assured that you are buying the real tongkat ali product made from the original tongkat ali tree.


Androherb tongkat ali is taken from the wild rainforest of Malaysia. Both the capsules and the slices has the unique bitter taste of tongkat ali.   Our products,  the roots and the extracts are sent to accredited laboratory for rigorous testing and analysis.  They are certified safe for consumption. 

Click here to see analysis report.

Lab Report Androherb Tongkat Ali
Androherb tongkat ali

Androherb Genuine Top Grade Tongkat Ali

Black Tongkat Ali?

Black tongkat ali powder vs the original natural color tongkat ali extract, what is the difference?


Let’s look at the extraction process before answering this question. Tongkat ali extract (Active ingredient: Eurycomanone) is extracted from using High Performance Liquid Chromatography (HPLC).  There are two key steps in the HPLC.   

1) Extraction of the active ingredient Eurycomanone was achieved by refluxing powdered Tongkat Ali with the appropriate solvent over a period of time.  

2) The extract from reflux was carefully filtered, dried and re-dissolved in a suitable solvent before it was introduced to the HPLC instrument.


The roots of tongkat ali is natural yellow in color. The extracting process does not change the color property of the product. If the real mature tongkat ali tree roots are used in the extracting process, it should not produce a powder that is black in color.  


Androherb tongkat ali are wild tongkat ali taken from the rainforest of Malaysia.  We use freeze drying technology so that our product is able to maintain it's original natural color yellow, and also preserving its original taste and smell profile. Therefore, you can be assured that you are buying the real tongkat ali product made from the original tongkat ali tree.


Androherb tongkat ali slices has a diameter of above 9cm.  We only choose the mature tongkat ali tree for our products.

For how long and how much should I take?


The recommended dosage is 2-3 capsules per day.  Take for a cycle of 4-6 week resting 1 week before continuing the next cycle.  Tongkat ali effects are normally seen within 2 weeks.  You can continue to take the supplement for as long as you like. There are no known problems for taking tongkat ali long-term.

Androherb Tongkat Ali Extract
Tongkat ali extract capsules
What are the possible side effects?


Tongkat ali is a natural herb.  It is unlikely that you get any side effects if you follow the recommended dosage.  However some people may get the following side effects

  • Tendency to take risk

  • Raised libido / sexual desire

  • Face blush

  • Heart palpitations

If these side effects persist you should consult your physician before continuing the supplement.



* Anyone with hormone related cancer, taking immunosuppressant , with heart disease or kidney disease are encouraged to talk to their doctor before taking Tongkat Ali.

**The above side effects are taken from account of personal experience with Tongkat Ali and NOT that of a doctor, qualified personal trainer, therapist, dietitian or nutritionist. If you are prone to illness or allergies please consult a doctor before taking dietary supplements of any kind.