Western Herbalism · Herbs & Botanicals

Tongkat Ali Eurycoma longifolia

Updated 21 October 2026

Tongkat Ali comes from the Western Herbalism tradition. Traditionally used in Southeast Asian folk practice for male vitality and stamina. The root is simmered as a bitter tea in Malay and Javanese daily practice — usually in the morning, usually in cycles of weeks rather than single days. Folk colour: street stalls sell it sliced by the piece, which tells you more about the culture than any label does. The root is sliced thin and simmered as a bitter decoction in Malay and Indonesian practice; street-side stalls sell it cut by the piece in morning markets, often boiled with rock sugar for a daily energy drink. Modern preparations include the bitter tea, water-extract powders (often standardised for eurycomanone content), and capsules of freeze-dried root. It is sometimes called "Malaysian ginseng" in the regional press, though it is unrelated botanically; the bitterness is part of the cultural identity of the drink. Season-wise it is taken in cycles of 4-12 weeks in most Malay practice rather than continuously, with breaks for liver rest in traditional guidance. Aqueous extracts and ethanolic extracts are not interchangeable in the literature; commercial products vary enough that two brands can carry different labelled content of the marker compounds.

Herbs and practices affect people differently — nothing here suits everyone. Take it as reference.
Western HerbalismHerb

Pregnancy, Breastfeeding & Child Safety

The following herbs are not recommended during pregnancy, breastfeeding, or for children without consulting a healthcare provider: Ginseng (Red), Tongkat Ali. Relevant studies are limited, and traditional sources generally advise caution.

Check interactions →

Traditional use

Traditionally used in Southeast Asian folk practice for male vitality and stamina. The root is simmered as a bitter tea in Malay and Javanese daily practice — usually in the morning, usually in cycles of weeks rather than single days. Folk colour: street stalls sell it sliced by the piece, which tells you more about the culture than any label does. The root is sliced thin and simmered as a bitter decoction in Malay and Indonesian practice; street-side stalls sell it cut by the piece in morning markets, often boiled with rock sugar for a daily energy drink. Modern preparations include the bitter tea, water-extract powders (often standardised for eurycomanone content), and capsules of freeze-dried root. It is sometimes called "Malaysian ginseng" in the regional press, though it is unrelated botanically; the bitterness is part of the cultural identity of the drink. Season-wise it is taken in cycles of 4-12 weeks in most Malay practice rather than continuously, with breaks for liver rest in traditional guidance. Aqueous extracts and ethanolic extracts are not interchangeable in the literature; commercial products vary enough that two brands can carry different labelled content of the marker compounds.

How it’s traditionally used

In Malay and Indonesian folk practice, tongkat ali is taken as a bitter root decoction rather than a quick supplement. The dried root is sliced thin and simmered for an hour or more until the liquid turns amber and bitter. Morning-market stalls across Peninsular Malaysia, Sumatra and Java sell the root cut by the piece, weighed out and boiled on the spot, often sweetened with rock sugar for a morning drink. Village households keep a small bundle of the woody root in the kitchen, breaking off pieces as needed for a weekly brew rather than buying pre-packaged powder. Older men in particular drink it in cycles of a few weeks, with breaks rather than continuous daily use; Indonesian folk guidance often flags a short rest for the liver between cycles. Rare cases of liver injury have been reported (LiverTox); stop and seek medical advice if you notice yellowing skin or eyes, dark urine, or unusual fatigue. Modern kitchens more often reach for water-extract powders (sometimes standardised for eurycomanone content) and capsules of freeze-dried root; the regional press sometimes calls it "Malaysian ginseng," though it is unrelated botanically. In practice it stays a simmered morning decoction — slow, bitter, and shared.

What research says so far

Has been studied for stress hormones and self-reported wellbeing in small trials; testosterone evidence is limited. Hormone studies in men keep producing small, conflicting trials — enough to write about, not enough to promise. Human trials cluster in the 30 to 100 participant range over 8 to 12 weeks, with a handful of extensions. Common outcomes include fasting testosterone in men with self-reported low vitality, cortisol (saliva or serum), SHBG, sperm motility and concentration, and mood questionnaires in stressed populations. A few small RCTs in men with low-normal baseline testosterone report modest increases; trials in healthy men within 8 weeks tend to show smaller effects. Stress-hormone trials report mixed results — cortisol-to-DHEA ratios have moved in some studies and not others. The fertility literature is similarly small and split. Systematic reviews conclude that the human evidence is preliminary; sample sizes and trial duration limit the strength of any claim, especially for testosterone, where marketing routinely outruns data.

Things to be careful about

Commonly used amounts in traditional practice vary. May affect blood pressure; avoid combining with stimulants without guidance. Not recommended during pregnancy or breastfeeding without professional guidance.

Disclaimer

  • This describes what the tradition does and what research has looked at. It is not advice to take anything.
  • On medication, pregnant, nursing, or managing a condition — ask your doctor or pharmacist first. Check a combination →
  • Amounts used in traditional practice are descriptive — this page says nothing about how much anyone should take.

Related comparisons

A friend finding the tradition that fits their week

Still not sure which tradition gets you?

Find your match

Where this comes from

  • Southeast Asian folk practice, recorded in reference works
  • PubMed abstracts
  • Classical and national texts for this tradition, in the public domain or cited as fact-level notes

Disclaimer: This site is for informational purposes only and is not medical advice. The content describes traditional uses and published research — it does not recommend any treatment. Always consult a qualified health professional before using any herb or supplement, especially if you are pregnant, nursing, taking medication, or managing a health condition. Learn about our editorial process →