Longjack and Tongkat Ali are both from the same plant known as Eurycoma Longifolia and the reported dosage based on human clinical trials suggests the optimal dosage falls within 100mg – 400mg daily.
But you could buy a 1600mg Tongkat Ali, and get a 1,600mg amount per serving equivalent to 800mg per capsule x 2 servings daily.
In this review, we perform a technical assessment and deep-dive analysis of popular Tongkat Ali 1600mg brands to investigate whether high dose formulation is effective, safe or perhaps a marketing ploy that will convince you to buy because of its low prices.
Nature’s Truth, Horbaach and Piping Rock are three US-made brands that produce Longjack Tongkat Ali supplements at 1,600mg per serving, promising better value at affordable prices below $10 per bottle.
At a glance, 1,600mg Tongkat Ali is considered the best deal you could buy on Amazon at attractive prices of between $8.99 to $10.99 per 120 capsules with average of 4.2 star consumer rating.
However, in terms of effectiveness and measurable health benefits, this is far from what consumer will get due lack of clinical testing despite being GMP certified and possibly 3rd party lab tested.
Looking at various white-label Tongkat Ali brands on Amazon, many are using deceptive marketing to trick customers into buying a higher Tongkat Ali amount by using rather a confusing term “amount per serving” as shown below.
In this technical review, we shall assess the performance of top three popular 1,600 Longjack Tongkat Ali based on potency (strength), efficacy (effectiveness), and other quality manufacturing attributes that may contribute to the 4-star or higher review ratings on Amazon.
If you are buying a 1,600mg LongJack Tongkat Ali supplements, please be careful to read the labels to ensure you are consuming or getting the right amount for the price you pay for. To get better clarity, use this guide to ensure you are actually getting optimal Tongkat Ali amount as the recommended efficacy dosage (for it to work) is between 200mg to 400mg of pure Tongkat Ali root extract.
| Total amount per serving* (as per the bottle label) *2 serving daily | 1,600mg |
| Total actual amount per capsule (based on maximum capacity for size “0” capsule) | 800mg |
| Actual Tongkat Ali amount per capsule (as per the bottle label) | 80mg |
| Other remaining ingredients* per capsule *Rice powder (filler), magnesium stearate, maltodextrin (eg: corn starch) and other unknown ingredients | 800mg – 80mg = 720mg |
Warning:
Taking Tongkat Ali supplements that contain impurities, adulterated with other food ingredients may affect potency, efficacy or other side effects. Please consult your healthcare professionals, nutritionist or dietitian to ensure the Tongkat Ali’s bioactive ingredients are fully understood, transparent and type of extract used before consuming 1,600mg Longjack Tongkat Ali or in high doses.
The short answer is, no you are not getting the best value from buying a 1,600mg Longjack Tongkat Ali from Nature’s Truth, Horbaach or Piping Rock at $10.99 or even at discounted price of $8.99 for a bottle of 120 capsules.
Firstly, these brands don’t offer Tongkat Ali extract that is standardized, which are reported and highly regarded by herbalists, medical professionals and nutritionist as the best in the market. Instead, most 1,600mg Tongkat Ali brands we found contain non-standardized extract at lower ratio of 20:1 and this did not meet the bioactive threshold values (or specifications) set by the internationally acclaimed Tongkat Ali industry standard, known as the M2409.
Now, second most important point is that the actual amount contained in the capsule is 80mg of Tongkat Ali per capsule, which is far less than 1,600mg based on was advertised, marketed and labeled on the bottles.
So you are not getting the best value, you could be shortchanged and sometimes be a victim of a deceptive marketing strategy.
The 1,600mg Tongkat Ali found in some brands that source their powder extract from Indonesia or China, with 90% of the extract containing rice fillers, magnesium stearate and other ingredients. That is the reason most users and first-time buyers reported no testosterone or libido effects after taking 1,600mg longjack Tongkat Ali product such as Horbaach, Piping Rock or Nature’s Truth.
Further investigation showed that the 1,600mg Longjack Tongkat Ali is written on label as “amount per serving”, an industry term that describes an amount that someone would typically consume per serving. To avoid confusion, the amount per serving is not a recommended amount, nor it represents the amount that you will be getting per capsule.
By now, you may feel deceived, cheated or even frustrated that Tongkat Ali didn’t work on you due to the above reasons.
| Brand | Amount Per Serving | Extraction Ratio | Amount of Tongkat Ali content per capsule |
| Nature’s Truth LongJack Tongkat Ali | 1,600mg | 20:1 | 80mg |
| Piping Rock Longjack Tongkat Ali | 1,600mg | 20:1 | 80mg |
| Horbaach LongJack Tongkat Ali | 1,600mg | 20:1 | 80mg |
Data source: Amazon
Based on toxicity tests from animal studies, 1,600mg may be well above the allowable toxicity limit of 1,300mg per single dose. However, since the Horbaach, Nature’s Truth and Piping Rock actual contains 80mg of Tongkat Ali extract based on per advertised, it means that is well below the actual limit (provided the amount declared by each brand is true).
And since the maximum capacity of a size “0” capsule (i.e ¾ capsule size) can only accommodate between 600-800mg of Tongkat Ali powder, the remaining amount (800mg – 80mg = 720mg) may contain rice powder (and other form of fillers, adulterants or food ingredients) rather than the actual Tongkat Ali powder extract that should help you to achieve your health goals.
Whilst it may still be safe to take the supposedly pure and potent 1,600mg Tongkat Ali (that actually contains rice fillers or corn starch powder), should you continue to do so if it doesn’t give any significant energy boost, libido or even measured real world performance?
If you are in doubt which Tongkat Ali brand is better, Nature’s Truth, Horbaach and Piping Rock both offer similar value since these brands provide a total of 1,600mg per serving, taken from a 80mg Tongkat Ali at 20:1 extraction ratio.
Given the low quantity of pure Tongkat Ali extract contained in each capsule, it means there is no product differentiation between Nature’s Truth, Horbaach, Piping Rock and other similar Tongkat Ali that offers 1,600mg per serving.
| Nature’s Truth Longjack Tongkat Ali | Horbaach Longjack Tongkat Ali | Piping Rock Longjack Tongkat Ali | |
| Price | $ 9.99 | $ 10.99 | $ 8.99 |
| Amount per serving | 1,600mg | 1,600mg | 1,600mg |
| Total capsules | 120 | 120 | 120 |
| Amount of Tongkat Ali per capsule | 80mg | 80mg | 80mg |
| Rice Powder | Yes | Yes | Yes |
| Gluten Free | Yes | Yes | Yes |
| Soy Free | Yes | Yes | Yes |
| Lactose Free | Yes | Yes | Yes |
| GMP Certified | Yes | Yes | Yes |
| Extraction Ratio | 20:1 | 20:1 | 20:1 |
| Proprietary Extract | No | No | No |
| Standardized Extract | No | No | No |
| Lab Tested | No | No | No |
| Clinically Tested | No | No | No |
| Potency Tested | No | No | No |
We observe high amount of rice powder (maltodextrin) which may dilute the potency and efficacy of Tongkat Ali brands carrying the 1,600mg offering. In addition, lack of transparency of the bioactive ingredients may impact the ability to deliver the intended health benefits such as increased testosterone production, improved mood, increased dopamine production or energy synthesis that should happen at the cell level.
Further assessment found no evidence on the type of Tongkat Ali extraction used, or the percentage of bioactive ingredients used by brands such as Horbaach, Nature’s Truth or Piping Rock – making it less pure, trustworthy, or even reputable.
| Bioactive Ingredients | Nature’s Truth Longjack Tongkat Ali | Horbaach Longjack Tongkat Ali | Piping Rock Longjack Tongkat Ali |
| % of eurycomanone | Not available | Not available | Not available |
| % of eurypeptides | Not available | Not available | Not available |
| % of glycosaponin | Not available | Not available | Not available |
| % of crude protein | Not available | Not available | Not available |
| % of polysaccharide | Not available | Not available | Not available |
Additionally, we found no clinical evidence that type of Tongkat Ali extract used by these brands, compared to other clinically tested Tongkat Ali that use proprietary extract in human clinical trials.
On the contrary, the claims of testosterone boosting abilities may be borrowed from well-established Tongkat Ali human clinical studies using Physta standardized hot water extract – a notable MIT-formulation that was well established since 2003, with records and citation spanning across more than 30-50 related studies.
High dose Longjack Tongkat Ali supplements containing 800mg or 1,600mg per serving is something that we should be wary off due to lack of transparency and information on the purity levels, bioactive ingredients and type of extracts used.
Consumer demands better transparency on honest reviews related to exaggerated high content of Tongkat Ali products that comes with misleading, confusing and often deceptive labelling. Whilst there have been no reported hospitalized cases of consuming Horbaach, Nature’s Truth or Piping Rock, the effectiveness on testosterone, energy, libido and stamina warrants further clinically-backed evidence to ensure that it truly works.
Alex Kua leads AKARALI’s Global Partnership Community to help athletes, sports communities, and thousand of others optimize their well-being through evidence-based research that enables them to make better informed decisions. His legal and business consulting background underpins the rigorous data-driven approach in his writing – from hours of interviews, real-world performance data, and firsthand experiences of real people – offering actionable insights that connects clinical research, emerging health trends, and real-world applications. He is also an experienced researcher in herbal nutrition, with years of deep technical knowledge on Tongkat Ali (Eurycoma longifolia), including quality standards, industry benchmarks, lab tests, clinical trials, and the use of natural herbs by collaborating with top scientists, herbal experts, and nutritionists. As part of the core team behind AKARALI’s knowledge portal, he empowers people worldwide to access the benefits of high-quality herbal nutrition in a way that is effective, sustainable, and safe. He is also an avid runner, with regular participation in local sports communities and running events.
Our articles are third party reviewed by our panel of experts and medical advisors to ensure the facts are accurate and credible. These are validated against multiple source references which include but not limited to research studies, peer-reviewed journals, pre-clinical studies, clinical tests and other credible publications.
Our panel of medical advisors and experts are highly experienced in their individual fields. However, they do not provide any medical advice or recommendations arising from content published in this article.
Disclaimer:
The content published on this website is for educational purposes and should not be viewed, read, or seen as a prescription or constitute any form of medical advice. We recommend you consult your nearest GP or doctors before consuming Tongkat Ali or any products which contain Tongkat Ali. For further information, kindly refer to our Frequently Asked Questions (FAQ) for more information.
