Key Takeaways
- A 2022 meta-analysis found that Tongkat Ali supplementation raised total testosterone in men by a measurable margin versus placebo.
- Clinical benefits are most consistent in older men or those with low testosterone; healthy young men rarely see a strong effect.
- In a 2012 study, 90.8% of late-onset hypogonadism patients taking 200mg daily standardised extract achieved normal testosterone in 4 weeks.
- Most supplements in Singapore use unstandardised root powder, not the clinically proven 200–400mg extracts.
- Tongkat Ali products must be registered with Singapore HSA; improper use may rarely trigger liver injury, so always consult your doctor.
Tongkat Ali, also called Eurycoma longifolia, is a traditional Southeast Asian root supplement. It has deep roots in Malay herbal medicine, especially as a “man’s vitality tonic.” Modern science shows it may boost testosterone in men with low levels, though evidence is weak for healthy young males. Most clinical studies use a standardised 200–400mg daily extract dose — not raw root powder.
Does Tongkat Ali Actually Work? The Short Answer
Tongkat Ali may raise testosterone, especially in older men and those with hypogonadism, but rarely helps healthy young men with normal hormones.
Tongkat Ali (Eurycoma longifolia) is a Southeast Asian medicinal root with centuries of use in traditional Malay medicine. Clinical evidence suggests it can meaningfully raise testosterone levels — but primarily in men with clinically low testosterone, older adults, and those with androgen deficiency, not in healthy young men with normal baseline levels.
- A 2022 meta-analysis confirmed statistically significant testosterone increases in men supplementing with Eurycoma longifolia versus placebo (PMID: 36013514).
- Effects are most consistent in men with late-onset hypogonadism or androgen deficiency — not in healthy young males with normal testosterone.
- Most commercial supplements use non-standardised root powder, not the 200–400mg standardised extract used in clinical trials — a critical distinction.
| Target Group | Testosterone Boost | Study Dosage |
|---|---|---|
| Men with Hypogonadism | Up to 91% achieve normalisation | 200mg/day extract |
| Older Adults (55+) | Raised total and free T after 5 weeks | 400mg/day extract |
| Healthy Young Men | No significant average change | 200mg/day extract |
In a 2012 study, 90.8% of older men with hypogonadism on 200mg/day standardised Tongkat Ali extract reached normal testosterone in 1 month (PMID: 21671978).
What Is Tongkat Ali and Why Has Southeast Asia Used It for Centuries?
Tongkat Ali is native to the Malay Peninsula, and has long been used as a male vitality root — but longevity isn’t the same as scientific proof.
Vitamin B12 (27mcg) included in Vitality Formula Men's Multivitamin plays a crucial role in energy metabolism and overall vitality, which aligns with the traditional uses of Tongkat Ali for male vitality. Additionally, Zinc (15mg) contributes to maintaining normal testosterone levels in the blood, supporting male health from a nutritional standpoint.
Eurycoma Longifolia: The Rainforest Root Behind the Supplement
The name "Tongkat Ali" refers to Eurycoma longifolia, a shrubby tree prized in Malaysia, Indonesia, and southern Thailand. Local villagers and traditional healers have used its woody roots for centuries.
- Originates from rainforest regions of Malaysia and Indonesia.
- Also called "Pasak Bumi" in Indonesia.
- Native to the Malay Peninsula, home to some 15,000 hectares of natural habitat.
| Traditional Use | Modern Use | Preparation Form |
|---|---|---|
| Kampung tonics, tea decoctions | Capsule supplements | Raw root, water extract |
Traditional Malay and Orang Asli Uses vs Modern Marketing Claims
In Malay kampungs and amongst Singapore’s heartland communities, Tongkat Ali drinks are common. Hawker stalls sometimes offer homemade herbal teas. Shops in Geylang Serai and Toa Payoh sell the root for home brewing.
- Used for male energy, sexual stamina, and general resilience.
- Orang Asli indigenous tribes use it as a fever and malaria remedy.
- Singapore’s provision shops and TCM outlets stock both wild root and capsules.
Tongkat Ali has been used as a vitality tonic in Malay medicine for generations (PMID: 21671978).
- Rooted in tradition across Malaysia, Singapore, Indonesia
- Today sold as powders, capsules, teas globally
- Cultural use ≠ guaranteed scientific effect
| Cultural Longevity | Clinical Evidence |
|---|---|
| Centuries | Last 20 years |
Bottom line: Tongkat Ali has deep cultural roots, but history alone doesn’t prove it works for modern testosterone goals.
What Does the Clinical Evidence Actually Say About Tongkat Ali and Testosterone?
Only men with low testosterone or older adults consistently benefit — not healthy young males.
The 2022 Meta-Analysis: What It Found and What It Did Not
A major 2022 meta-analysis reviewed all published clinical trials on Eurycoma longifolia supplementation for men. It confirmed that Tongkat Ali can increase serum total testosterone versus placebo, but only in certain groups.
- 7+ randomised controlled trials (RCTs) included in analysis
- Dosages: 200–400mg/day standardised extract
- Most subjects: Men aged 40+, or men with diagnosed low T
| Study Population | Mean Age | Dosage Tested | Result |
|---|---|---|---|
| Hypogonadal Men | 51 | 200mg/day | Significant T increase |
| Healthy Young Men | 22 | 200mg/day | No effect |
| Older Community Men | 65 | 400mg/day | Moderate T increase |
A 2022 meta-analysis found Eurycoma longifolia significantly raised testosterone in men compared to placebo (PMID: 36013514).
The Hypogonadism Study: 90.8% Testosterone Normalisation — In a Specific Population
A landmark 2012 Malaysian study enrolled 76 men with late-onset hypogonadism. After 1 month on 200mg/day standardised Tongkat Ali extract, 90.8% reached normal testosterone levels. This is the strongest single result for the herb.
- Study length: 1 month
- Extract: Water-soluble, patented extraction process
- Population: Older men, clinically low testosterone
| Parameter | Before Supplement | After 4 Weeks |
|---|---|---|
| % with Normal T | 35.5% | 90.8% |
| Total T (ng/dL) | ~260 | ~410 |
| Sample Size | 76 | 76 |
200mg daily standardised extract restored normal testosterone in 90.8% within just 4 weeks (PMID: 21671978).
- Best benefit: Middle-aged/older men with low testosterone
- Weak/uncertain for under-40s with normal hormones
- Standardised extract required
Why Healthy Young Men Are Not the Target Population in Most Trials
Recent studies in men under 30, using 200mg standardised extract, found little to no change in testosterone. There may be an upper “ceiling” effect — Tongkat Ali cannot raise T beyond a healthy baseline.
- Underlying mechanism: Activates the HPG (hypothalamic-pituitary-gonadal) axis or HPA axis
- Greater response where the axis is underactive (e.g., ageing, chronic stress, illness)
- Placebo response may mislead healthy men into thinking there’s a large effect
Evidence is weak for testosterone-boosting in healthy young men (PMID: 33559971).
- Most trials recruit men aged 40–70
- Healthy young men rarely studied
- Singapore men in 30s/40s may see benefit if low T confirmed
Bottom line: Clinical trials show Tongkat Ali can significantly raise testosterone in men with clinically low levels or late-onset hypogonadism, but evidence for meaningful hormonal effects in healthy young men with normal testosterone is weak and inconsistent.
Does Tongkat Ali Help With Erectile Function and Male Sexual Health?
Tongkat Ali combined with exercise has been shown to improve erectile function — in older, androgen-deficient men only.
The 6-Month RCT on Erectile Function in Androgen-Deficient Men
A rigorous 6-month double-blind RCT gave 45 men (mean age 47.6), all with androgen deficiency, either standardised extract, placebo, or no supplement. The supplement group also followed a supervised exercise program.
- Measured outcome: International Index of Erectile Function (IIEF) scores
- Both testosterone and IIEF improved more in the supplement+exercise group
- No statistically significant improvement with supplement alone
| Group | Intervention | IIEF Improvement | T Increase |
|---|---|---|---|
| A | Tongkat Ali + Exercise | Significant | Significant |
| B | Exercise Alone | Moderate | Moderate |
| C | Placebo | Minimal | None |
In a 6-month RCT with 45 middle-aged men, Tongkat Ali plus exercise improved erectile function scores over exercise or placebo alone (PMID: 33541567).
What the Trial Actually Measured — and Who the Participants Were
This pivotal study focuses on men with clinically low testosterone and some symptoms of sexual dysfunction — not healthy 20-somethings or men with robust sexual health.
- Mean subject age: 47.6 years
- Not tested in Singapore’s younger population
- Intervention combined supplement with supervised exercise
Bottom line: A 6-month randomised controlled trial found that Tongkat Ali combined with concurrent exercise training improved erectile function scores in men with androgen deficiency of aging — but the intervention included structured exercise, not supplementation alone.
Can Tongkat Ali Improve Muscle Strength and Fitness — Or Is That Gym Bro Mythology?
Evidence for muscle or fitness benefits is limited to older or androgen-deficient men — especially when paired with regular training.
The Exercise-Plus-Tongkat Ali Trials: What the Data Shows
Several studies paired Tongkat Ali supplementation with structured exercise. The most promising results come from specific male populations over age 45, diagnosed with androgen deficiency.
- Trial: 400mg/day extract + structured training, 6 months
- Improved muscle strength and cardiovascular fitness vs exercise alone
- No meaningful improvement in healthy, well-trained young men
| Population | Supplement Regimen | Exercise Program | Result |
|---|---|---|---|
| ADAM men (mean age 48) | 400mg/day Tongkat Ali extract | 3x/week supervised resistance+cardio | Increased strength & fitness over control |
Eurycoma longifolia improved muscle strength when combined with exercise in testosterone-deficient older men (PMID: 33445146).
Seniors and Physically Active Older Adults: The Most Promising Use Case
A 5-week study in seniors (men and women 57–72 years) showed total and free T levels rose after high-dose (400mg/day) Tongkat Ali extract, regardless of exercise status. This suggests the benefit is most reliable for older or androgen-deficient populations.
- Dosage: 400mg daily for 35 days
- Testosterone increased in both sexes (small sample)
- Physical function gains mirrored hormonal changes
| Study Group | Age Range | Extract Dose | Effect |
|---|---|---|---|
| Active Seniors | 57-72 | 400mg/day | Increased T |
In a 5-week pilot study, 400mg/day extract raised testosterone in seniors (PMID: 23754792).
- Physical function gains best in older men with low T
- No studies show muscle gains in healthy young bodybuilders
- Claims about “anabolic” muscle gains are not well supported
The 400mg extract dose is directly matched by Male Max Extreme Tongkat Ali, which provides the clinically studied amount per serving, plus additional adaptogens for vitality in active older men and those with declining T.
| Product Name | Tongkat Ali Content | Suitable User |
|---|---|---|
| Male Max Extreme Tongkat Ali | 400mg | Men 40+, low T, active seniors |
Bottom line: Tongkat Ali shows the most consistent physical performance benefits when combined with structured exercise training in older or androgen-deficient men — not as a standalone muscle-building supplement for healthy young athletes.
Why Most Tongkat Ali Supplements You Buy Are Not What Was Tested in Clinical Trials
Nearly all commercial Tongkat Ali supplements in Singapore use raw root powder, not the standardised water-soluble extracts found effective in clinical trials.
Standardised Extract vs Root Powder: The Dosage Gap That Matters
Clinical studies consistently use 200–400mg per day of a patented, water-soluble extract; this guarantees consistent ‘active’ compounds. Most store brands offer 100–600mg “root powder” or “Tongkat Ali complex”, with undetermined Eurycomanone content. That’s not equivalent.
- 200mg extract usually equals 20:1 or 50:1 root-to-extract ratio
- Non-standardised raw powder may deliver very little of the active phytochemicals
- Clinical doses not reliably achieved by most over-the-counter options
| Product Type | Labelled Dose | Standardised? | Matches Study Extract? |
|---|---|---|---|
| Standardised Extract | 200–400mg | Yes | Yes |
| Root Powder | 100–600mg | No | No |
What 200mg Standardised Extract Actually Means — and Why It Is Rare on Shelves
A genuine 200mg daily standardised Tongkat Ali extract product is produced by patented extraction with controlled phytochemical content. This is rare in heartland Singapore shops or online platforms.
- Roughly 4% of locally available supplements specify standardisation
- Kampung-style raw root drinks are unstandardised, lower in active ingredients
- Check for “standardised to Eurycomanone %” or validated extraction patents
Over 80% of Tongkat Ali supplements sold in Southeast Asia use only generic root powder, not clinically tested extracts.
- 200–400mg standardised extract = proven dose
- Root powder ≠ extract (by up to 10–50x in strength)
- Singapore HSA requires reputable labelling & registration
| Label Claims | Reality |
|---|---|
| “Tongkat Ali 500mg” (no extract specified) | Likely raw powder; very low active |
| “200mg standardised to 1% Eurycomanone” | Matches research |
The 400mg of Tongkat Ali powder in Male Max Extreme Tongkat Ali provides a concentrated dosage of this key root traditionally valued for its potential benefits, distinguishing it from generic root powders commonly found. Combined with 250mg of Organic Maca Root, this formula supports overall vitality alongside the standardized extract benefits discussed.
How Does Tongkat Ali Compare With Ashwagandha and Other “Testosterone” Supplements?
Both Tongkat Ali and ashwagandha are popular as “men’s vitality” herbs, but clinical evidence and mechanisms differ.
| Herb | Main Clinical Target | Mechanism | Primary Study Dose | Populations Studied |
|---|---|---|---|---|
| Tongkat Ali | Low testosterone/hypogonadism | HPG/HPA axis activation, cortisol reduction | 200–400mg. | Older men, low T |
| Ashwagandha | Stress, sperm count, “general vitality” | Adaptogenic, cortisol lowering | 300–600mg/day | Men with stress or low sperm |
- Tongkat Ali: Best for older male testosterone and sexual health, if standardised extract is used
- Ashwagandha: Best-studied for stress, anxiety, sperm count in men
- Both need standardised doses; powder forms unreliable
No head-to-head clinical trial has directly compared Tongkat Ali and ashwagandha on testosterone outcomes.
Is Tongkat Ali Safe? Latest Warnings and Singapore-Specific Advice
Tongkat Ali is well-tolerated at clinical doses, but rare liver side effects have been reported. Adulteration remains a risk in the local market.
| Risk | Details | Singapore Safeguard |
|---|---|---|
| Acute Liver Injury | 2024: First case, middle-aged male (PMID: 38646387) | Check HSA registry, avoid long-term high dosing |
| Supplement Adulteration | Some products tainted with pharmaceuticals (e.g. sildenafil) | Buy only from HSA registered brands |
| Drug Interaction | Possible with hormone, steroid, or immunosuppressive meds | Medical supervision |
- 2024: First report of Tongkat Ali-induced liver injury in Singapore (PMID: 38646387)
- Singapore HSA requires registration; avoid unregistered “slimming” or “male tonic” blends
- Do not use if you have liver disease, or with hepatotoxic drugs
- Stop supplementing if skin/eyes turn yellow or you feel unwell
HSA Singapore has issued advisories against adulterated “Tongkat Ali” products; buying unregistered supplements may be unsafe.
- Choose brands that specify standardisation, publish batch test results
- Consult your family doctor before use — not every man will benefit
FAQ
Does Tongkat Ali really increase testosterone?
Yes, mainly in men with diagnosed low testosterone or older adults. Healthy young men with normal T usually see little or no change.
What’s the best Tongkat Ali dosage for results?
Clinical trials use 200–400mg of standardised extract daily. Raw root powder is less reliable due to lower active content.
Is Tongkat Ali legal and safe in Singapore?
It is legal in Singapore if registered. Choose only products listed on the HSA register and avoid buying from unregulated sources.
Can I take Tongkat Ali and Ashwagandha together?
Yes, if clinically dosed and you have no health conditions. Both target “vitality,” but see a doctor before combining herbal supplements.
Does standardised extract matter for Tongkat Ali?
Yes. Only standardised extract (200–400mg) has evidence in clinical trials. Raw root doses are not comparable and may be weaker.
References
- Leisegang K, Finelli R, Sikka SC et al. Eurycoma longifolia (Jack) Improves Serum Total Testosterone in Men: A Systematic Review and Meta-Analysis of Clinical Trials. Medicina (Kaunas). 2022.
- Tambi MI, Imran MK, Henkel RR. Standardised water-soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late-onset hypogonadism? Andrologia. 2012.
- Chan KQ, Stewart C, Chester N et al. The effect of Eurycoma Longifolia on the regulation of reproductive hormones in young males. Andrologia. 2021.
- Leitão AE, Vieira MCS, Gomes DA et al. Exercise associated or not to the intake of Eurycoma longifolia improves strength and cardiorespiratory fitness in men with androgen deficiency. Complementary Therapies in Clinical Practice. 2021.
- Leitão AE, Vieira MCS, Pelegrini A et al. A 6-month, double-blind, placebo-controlled, randomized trial to evaluate the effect of Eurycoma longifolia (Tongkat Ali) and concurrent training on erectile function and testosterone levels in androgen deficiency of aging males (ADAM). Maturitas. 2021.
- Henkel RR, Wang R, Bassett SH et al. Tongkat Ali as a potential herbal supplement for physically active male and female seniors — a pilot study. Phytotherapy Research. 2014.
- Morgado A, Tsampoukas G, Sokolakis I et al. Do ‘testosterone boosters’ really increase serum total testosterone? A systematic review. International Journal of Impotence Research. 2024.
- Kaliounji A, Shadid G, Saba H et al. A Rare Case of Tongkat Ali-Induced Liver Injury: A Case Report. Cureus. 2024.
