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Optimized Tongkat Ali Stack

Tongkat Ali Has Never
Been Built Like This.

Testosterone support is not about one compound. It is about every pathway, every mechanism, every interaction. We designed for the whole system.

8Synergistic ingredients
7 mgEurycomanone per serving
2Distinct Tongkat Ali extracts
1Optimized stack

AFTER 45, YOUR TESTOSTERONE DROPSBUT IT DOESN'T HAVE TO.

Testosterone declines at roughly 1 to 2% per year after age 30. By 45, that cumulative loss becomes clinically significant, and the consequences show up everywhere: fatigue, body composition changes, reduced drive, slower recovery, and mood shifts that most men chalk up to "just getting older."

It doesn’t have to be that way. Testosterone is not a fixed number, it is a system with multiple biological levers. Eurycomax is designed to pull all of them at once.

1–2%Annual T decline after age 30
38%Of men 45+ have clinically low T
70%Of low-T men are undiagnosed
50% 60% 70% 80% 90% 100% 25 30 35 40 45 50 55 60 Clinically low range % of baseline testosterone

Most testosterone is locked up and biologically inactive

About 60–70% of total testosterone is bound to SHBG and can't reach androgen receptors. By reducing SHBG via two independent pathways (Tongkat Ali + boron), Eurycomax shifts more testosterone into its free, bioavailable form the fraction that actually does something in the body.

Your doctor's "total T" number doesn't tell you this story. Free testosterone does.

Typical distribution Before SHBG reduction 2% FREE & ACTIVE
After SHBG reduction Eurycomax-supported distribution ~8% FREE & ACTIVE
Free testosterone (active) Albumin-bound (weakly available) SHBG-bound (inactive)

Illustrative distribution based on published SHBG and free testosterone ranges.

Eurycomax raises both total testosterone and free testosterone, providing comprehensive and usable levels in the body.

MOST TONGKAT ALI SUPPLEMENTS
HAVE LOW EURYCOMANONE.

Eurycomanone is the primary active compound responsible for Tongkat Ali's testosterone-supporting effects. Standardization matters because without a verified, meaningful eurycomanone dose, there is no pharmacological basis for the supplement to work.

In independent UPLC lab testing of 10 competitor Tongkat Ali products, the average eurycomanone found per dose was just 0.6 mg. Two of the ten brands had absolutely zero detectable eurycomanone. Several others tested below the native concentration of dried Tongkat Ali root, meaning customers were getting less than they would from raw, unprocessed material.

This is why so many people believe Tongkat Ali doesn't work. They were right that it didn't, for them, because they were taking a substandard product. Eurycomax delivers 7 mg of verified eurycomanone per serving, over 11 times more than the competitor average, backed by published COAs on every batch.

11×
More eurycomanone per serving in Eurycomax vs. the average of 10 competitor products tested by independent UPLC analysis
Avg. competitor: 0.6 mg eurycomanone per dose
7 mg
Verified eurycomanone per Eurycomax serving, confirmed by in-house and 3rd party UPLC-PDA chromatography
Published COA on every batch
2 of 10
Competing brands tested that had zero detectable eurycomanone, despite premium pricing and standardization claims
Independent UPLC laboratory analysis
UPLC-PDA Chromatogram Overlay
Eurycomax vs. leading competitor same scale, same method
0.000 0.001 0.002 0.003 0.004 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 Minutes AU other quassinoids Eurycomanone Competitor: eurycomanone barely detectable at this scale Eurycomax Competitor Extract
Eurycomax7 mg
Avg. competitor0.6 mg

Eurycomanone detected per dose. Across 10 competitor products tested by independent UPLC analysis, Eurycomax delivered 11× more than the average — two competitors had none at all.

One extract gives you potency. Two extracts give you the full picture.

Standard Tongkat Ali supplements use a single hot-water extraction. It concentrates eurycomanone, but heat degrades the heat-sensitive compounds and bioactive alkaloids the root naturally contains. Eurycomax pairs two distinct extraction methods: an ultra-potent ethanol extract that uses column chromatography to concentrate the quassinoids like eurycomanone, and a cold water ultrasonic extract that pulls over the full-spectrum bioactive matrix that standard extracts destroy through heat.

1
10% Eurycomanone Extract
Standardized precision, 50 mg

Standardized to 10% eurycomanone, the highest commercially available standardization. This delivers a guaranteed, UPLC-verified dose of the primary active compound tied to aromatase inhibition, HPG axis stimulation, and SHBG reduction. This extract has one purpose: precise quassinoid concentration.

5 mg eurycomanone
2
Cold Water Ultrasonic Extract
Full-spectrum capture, 800 mg

Ultrasonic-assisted cold water extraction preserves heat-sensitive quassinoids, alkaloids, and bioactive peptides that boiling-temperature extraction destroys. Sound-wave cavitation disrupts plant cell walls at low temperatures, liberating a broader bioactive spectrum without degradation.

2 mg eurycomanone + full plant matrix

Testosterone has six distinct pillars.
We built for all of them.

Eurycomanone does not just "boost testosterone." It operates through six validated, independently-studied biological pathways, each of which matters, and none of which overlap.

Aromatase Inhibition

Eurycomanone inhibits aromatase, the enzyme that converts testosterone to estrogen. Less conversion means more testosterone stays in its active, bioavailable form.

Pathway: Enzyme inhibition → T preservation
HPG Axis Activation

Stimulates the hypothalamic-pituitary-gonadal axis, elevating LH and FSH, the upstream hormones that directly signal Leydig cells to produce more testosterone.

Pathway: LH/FSH ↑ → Leydig cells → T ↑
SHBG Reduction

60 to 70% of total testosterone is bound to SHBG and biologically inactive. Tongkat Ali reduces SHBG, freeing testosterone into its active, bioavailable form where it can actually function.

Pathway: SHBG ↓ → Free testosterone ↑
Cortisol Regulation

As an adaptogen, Tongkat Ali reduces cortisol, testosterone's primary antagonist. Lower cortisol directly improves the testosterone-to-cortisol ratio and mood state parameters.

−16% cortisol in 4-week RCT · Talbott et al. 2013
Phosphodiesterase Inhibition

At higher concentrations, eurycomanone inhibits phosphodiesterase, increasing cyclic AMP in Leydig cells and stimulating direct intratesticular testosterone biosynthesis.

Pathway: cAMP ↑ → Leydig cell output ↑
Prolactin Suppression

Elevated prolactin directly suppresses LH and testosterone production. Mucuna pruriens raises dopamine, which inhibits prolactin release from the pituitary, removing a key hormonal brake.

Pathway: Dopamine ↑ → Prolactin ↓ → LH/T ↑

The research doesn't lie.

+37%

Increase in testosterone levels in moderately stressed subjects after 4 weeks of standardized Tongkat Ali supplementation

Talbott et al., Journal of the International Society of Sports Nutrition, 2013
90.8%

Of men with low testosterone symptoms achieved normal testosterone levels after just 1 month of standardized Tongkat Ali

Tambi et al., Asian Journal of Andrology, 2012
−16%

Reduction in salivary cortisol, alongside significant improvements in tension (-11%), anger (-12%), and confusion (-15%)

Talbott et al., JISSN, 2013, RCT, 63 subjects
−36%

Improvement in cortisol-to-testosterone ratio, the primary marker of anabolic balance and training recovery capacity

Talbott et al., JISSN, 2013
+28%

Increase in CD4 T-cell count with 12% increase in Naïve T-cells, evidence of immune modulation via cortisol normalization

Randomized placebo-controlled study, 83 male subjects
~70%

Jump in free testosterone reported in real-world verified biomarker testing at Eurycomax dosing, the fraction that reaches androgen receptors

Verified Eurycomax customer via blood testing

Every ingredient has a specific job.

Each supporting compound addresses a distinct limiting factor in testosterone support, one Tongkat Ali alone cannot fully resolve. Click any card to reveal the mechanism.

★ Primary Driver
Tongkat Ali (10% Eurycomanone)
5 mg eurycomanone
The highest-standardized, most clinically studied quassinoid for testosterone support. UPLC-verified at 10%, the highest available standardization.
Mechanism: Aromatase inhibition, HPG axis LH/FSH stimulation, SHBG reduction, and Leydig cell phosphodiesterase inhibition, operating through all six testosterone pathways simultaneously.

Why this dose matters: Less than 0.5% eurycomanone has been shown insufficient for pharmacological effect. At 5 mg from a 10% standardized extract, this dose dramatically exceeds typical market offerings where most competitors test below 1 mg total.
★ Full Spectrum
Cold Water Ultrasonic Extract
2 mg eurycomanone + quassinoid matrix
Preserves heat-sensitive peptides, alkaloids, and the broader quassinoid profile that hot-water extraction destroys.
Mechanism: Ultrasonic cavitation at cold temperatures mechanically disrupts plant cell walls without heat degradation, preserving canthin-6-one alkaloids, β-carboline compounds, glycosaponins, and heat-labile peptides alongside eurycomanone.

Why the matrix matters: The synergistic quassinoid profile, 13α,21-dihydroeurycomanone, eurycomanol, and other co-occurring compounds, may contribute to benefits that eurycomanone alone cannot produce.
Dopamine / Prolactin
Mucuna pruriens (L-DOPA)
30 mg L-DOPA
Supports dopamine and reduces prolactin, a hormone that directly suppresses testosterone production when chronically elevated.
Mechanism: L-DOPA is the direct precursor to dopamine. Elevated dopamine suppresses prolactin secretion from the pituitary. Lower prolactin removes a key upstream brake on testosterone production, restores LH sensitivity.

Clinical evidence: Mucuna pruriens significantly improved testosterone, LH, and dopamine levels while reducing FSH and prolactin in infertile men. (Shukla et al., Fertility and Sterility, 2010)
Circulation / PDE5
Horny Goat Weed (10% Icariin)
20 mg icariin
Supports nitric oxide-mediated blood flow and testicular function via the cAMP/PKA/CREB pathway, complementing Tongkat Ali's aromatase activity.
Mechanism: Icariin is a flavonoid PDE5 inhibitor that supports nitric oxide-mediated vasodilation. Research shows effects on testosterone and testicular function in age-related dysfunction models via cAMP pathway activation and upregulation of androgen receptor expression.

Complement to Tongkat Ali: Tongkat Ali inhibits T→E2 conversion. icariin supports the circulatory environment and androgen receptor sensitivity needed for the downstream hormonal response to function.
Androgen Precursor
Micronized Pregnenolone
2.5 mg
The "mother hormone", the steroidogenesis precursor to testosterone, DHEA, and progesterone. Micronized for dramatically enhanced bioavailability.
Mechanism: Pregnenolone sits at the top of the steroidogenesis cascade. Adequate pregnenolone ensures the body has the raw molecular substrate to produce downstream androgens. Micronization dramatically improves absorption versus standard powdered form, most pregnenolone supplements skip this step.
SHBG Reduction
Boron Glycinate
1.5 mg elemental boron
Rapidly reduces SHBG through a complementary, independent pathway, increasing free, bioavailable testosterone within hours of supplementation.
Clinical evidence: Acute boron supplementation led to a significant decrease in SHBG within 6 hours, alongside reduced hsCRP and TNF-α. After 1 week, mean plasma free testosterone rose significantly while estradiol declined. (Naghii et al., J Trace Elements Med Biol, 2011)

Why it stacks: Tongkat Ali and boron reduce SHBG via independent mechanisms, their effects are additive, not redundant. Combined SHBG suppression amplifies free testosterone beyond what either ingredient achieves alone.
Thyroid / Metabolism
Potassium Iodide
100 µg iodine
Fuels thyroid hormone synthesis, the metabolic engine that regulates energy output, body composition, and androgen receptor sensitivity.
Mechanism: Iodine is a structural component of T3 and T4 thyroid hormones. Suboptimal thyroid function suppresses testosterone, impairs body composition, and blunts androgen receptor sensitivity. Adequate iodine supports thyroid-driven energy metabolism, a foundational factor that most testosterone formulas completely ignore.
Absorption Enhancer
Sodium Caprate (C10)
GI absorption enhancer
A medium-chain fatty acid that transiently opens tight junctions in the GI epithelium, dramatically improving absorption of all co-administered bioactives.
Mechanism: Sodium caprate (decanoic acid sodium salt) reversibly increases intestinal permeability by modulating tight junction proteins, enabling larger and more polar bioactive molecules, including quassinoids and eurycomanone, to cross the gut wall more efficiently.

Why this matters: Even a perfectly dosed formula fails if its bioactives cannot be absorbed. Most testosterone supplements completely ignore GI absorption kinetics. Sodium caprate ensures the full spectrum of Eurycomax’s bioactives reach systemic circulation where they can work.

What customers are actually saying.

Verified reviews from Nootropics Depot customers
Benjamin P. Pennsylvania, United States
2 weeks ago

Phenomenal!

This stack is badass ! Incredible mood lift, incredible boost to libido! Incredible pumps in the gym and a noticeable boost to stamina. I’m am incredibly impressed!

d K.

Amazing product with noticable results

This is an amazing product for sustained energy, vitality and overall male focus/libido/positive outlook on a daily basis. I HIGHLY recommend to anybody and everybody, particularly for Males over 40 yrs! Sure it’s expensive, but it’s WORTH it!

Olga G. Bayern, Germany
10 months ago

Fantastic!

Love it! I’m a woman in menopause and it’s a game changer for me: energy, mood, motivation, fast thinking, I got all the benefits from Eurycomax and enjoy it! I’m very sensitive to the supplements, but find this dosage (2 caps) exactly what I need, I’m surprised that I didn’t overreact, started with 1 capsule for first 3 days though.

Robert S. Florida, United States

Highly recommended!

It gave me the boost to hit my workouts harder and most important it shook off my laziness. Eurycomax gave me the drive I was missing.

Matthew F. Arkansas, United States
3 months ago

Excellent!

So I advise anyone trying this to be GENTLE and alert to your body’s ability to handle and adapt to all this product is going to do. Its great - but also powerful! I had to cut back to 1 a day after 2 weeks because my temper grew short, and my energy levels and anxiety were fairly overcharged (to a good degree more than any other supps). Workouts are great although I dont pump a whole lot of iron, it has caused me to just start doing pushups and curls and walking lengthy distances again. Stamina is great, endurance, libido, all those are genuinely affected in a positive way - I just cannot take 2 a day and remain calm, and relaxed, and not be driven to anger over even tinier things that normally would not bother me.

Kevin T. Texas, United States

Excellent!

This is my favorite supplement of all time.

Sean S. Wisconsin, United States

Definitely recommended!

This stuff stacked alongside with a cystamax goes an intense powerful feeling and it makes me feel very good working out overall I’m very impressed with the products.

bashar Q. Alkhabar, Saudi Arabia

Remarkable!

Powerful products, my first time trying them. The best company in the world, number 1 without a doubt. Thank you.

Every batch is backed by lab testing.

ISO 17025-Accredited Lab

Every batch, raw materials and finished product, is tested in our own ISO/IEC 17025-accredited in-house analytical laboratory using validated UPLC/PDA methods. Certificates of Analysis are published on every product page. No black box.

UPLC-Verified 7mg Eurycomanone

Eurycomax delivers 7mg of verified eurycomanone per serving across two distinct Tongkat Ali extracts, confirmed by 3rd party UPLC-PDA chromatography, backed by published COAs.

GMP Certified · Made in the USA

Eurycomax is manufactured in a cGMP-certified facility in the United States. Identity, potency, purity, and contaminant testing, including heavy metals and microbials, are performed on every single batch before release.

Frequently asked questions.

Some people notice a shift in energy immediatley, but peak effects generally take 3–4 weeks of consistent daily use as the active compounds build up in your system.

Take 2 capsules once daily in the morning. For best results, use consistently and avoid skipping days.

Many generic products are unstandardized root powders with no guarantee of active compounds. Eurycomax uses an optimized complex yielding an exact 7mg of Eurycomanone per serving, backed by rigorous ISO 17025 lab testing.

Eurycomax is for people looking to break through physical plateaus, support daily vitality, and maintain healthy energy and hormone balance.

Yes. Every batch undergoes strict ISO 17025-accredited lab testing plus independent 3rd‑party verification to ensure purity, potency, and safety.

Yes! Eurycomax is considered safe for women and supports energy, mood, and hormone balance.

Start Today

ENGINEERED FOR
TESTOSTERONE
NOT HOPED FOR.

Most users report noticeable improvements in energy and drive within 1 to 2 weeks. Deeper hormonal and recovery benefits compound over 4 to 8 weeks of consistent daily use.

Eurycomax bottle
30 Servings
60 capsules · 2 per day
Ideal for first-time Eurycomax users
$64.99
$2.17 per daily serving
  • 30-day trial to feel the difference
  • Dual-extract Tongkat Ali (7 mg eurycomanone)
  • Full 8-ingredient synergistic stack
  • UPLC-verified potency, COA on every batch
  • Free US Shipping
Add to Cart — $64.99

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary.