Hormone Support
Tongkat Ali (Longjack)
Also known as: Eurycoma longifolia, Longjack, Malaysian ginseng, Pasak bumi
A Southeast Asian herb traditionally used to support testosterone levels and male vitality. Recent clinical evidence suggests it may modestly improve testosterone, muscle strength, and sexual function in men.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Every Tongkat Ali (Longjack) product we have scored
| # | Product | Score | Per serving |
|---|---|---|---|
| 1 | Transparent Labs Tongkat Ali | 91 A | $0.50 |
| 2 | Nutricost Tongkat Ali Capsules | 87 A | $0.27 |
| 3 | Nootropics Depot Eurycomax Capsules | 86 A- | $2.17 |
| 4 | Gorilla Mind Sigma | 85 A- | $0.83 |
| 5 | NOW Foods Testo Jack 200 | 83 A- | $0.57 |
| 6 | NOW Foods TestoJack 100 | 83 A- | $0.53 |
| 7 | Nootropics Depot Tongkat Ali Extract Capsules or Tablets | 80 A- | $0.67 |
| 8 | Double Wood LJ-100 Tongkat Ali Supplement | 78 B+ | $0.33 |
| 9 | Bluebonnet Nutrition INTIMATE ESSENTIALS FOR HIM TESTOSTERONE & LIBIDO BOOST | 66 B- | $1.93 |
Scored on dose accuracy, form, label transparency and third-party testing. Per-serving cost is list price divided by servings per container. No brand pays to be listed or ranked.
Common questions
How much Tongkat Ali (Longjack) should I take?
The typical range is 200-400mg standardized extract. 4+ weeks for effects
When should I take Tongkat Ali (Longjack)?
Morning. Either.
Which form of Tongkat Ali (Longjack) is best?
Capsule — Standardized extract. Other forms in the catalog: Powder, Standardized extract.
Is Tongkat Ali (Longjack) safe?
Commonly reported: Insomnia, Irritability, Restlessness. Serious warnings: May affect hormone-sensitive conditions. No major concerns
Which Tongkat Ali (Longjack) supplement scores highest?
Transparent Labs Tongkat Ali, at 91/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
Primary uses
- Testosterone support
- Libido
- SHBG reduction
- Stress
- Male sexual function
- Muscle strength and recovery
- Energy and vitality
What systematic reviews concluded
Outcomes that systematic reviews of Tongkat Ali (Longjack) reached a verdict on: 2 with a benefit, 1 unclear. Each is quoted from a review and linked to it on PubMed. How these were read.
Reviews found a benefit (2)
“Eurycoma longifolia, a blend of Punica granatum fruit rind and Theobroma cacao seed extracts (Tesnor™) and purified Shilajit extract (PrimaVie™) can be considered possibly effective for men with late-onset hypogonadism; Eurycoma longifolia and Withania somnifera possibly effective for healthy men” PMID 37697053 · 2 reviews
“A significant improvement in total testosterone levels after E. longifolia treatment was mostly reported in both healthy volunteers and hypogonadal men.” PMID 36013514
Not enough to say: erectile dysfunction.
How it works
- May increase free testosterone
- Reduces SHBG binding
- Cortisol reduction
Dosage
- Typical range
- 200-400mg standardized extract
- Timing
- Morning
- With food
- Either
- Duration
- 4+ weeks for effects
- Special populations
- Men with low testosterone, stress
Forms
- Capsule
- Powder
- Standardized extract· 70/100
Safety
Common side effects
- Insomnia
- Irritability
- Restlessness
Contraindications
- Hormone-sensitive cancers
- Heart conditions
Products containing Tongkat Ali (Longjack)
Top-scoring supplements in our catalog that list Tongkat Ali (Longjack) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Multiple studies showing testosterone and fertility benefits
Grade B: Some human trials support key claims; further confirmation needed.
Tongkat Ali (Longjack) compared head-to-head
Related in Hormone Support
Check a full stack
Formulate's free interaction checker lets you paste in any combination of supplements and medications at once — every pairing flags severity, timing, and cited evidence.
Open the checkerWhere does Tongkat Ali (Longjack) fit in your stack?
Answer two questions and get a stack graded on research — every ingredient scored on the evidence behind it, not the marketing.
Build my stack2 questions · free · no account needed to start
Also on iPhone — get the free app
Evidence-based supplement guides, no spam
We send a short digest when new guides drop — nothing else. No affiliate pushes, no sponsored content, unsubscribe anytime.
Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.