The libraryDrive
Tongkat Ali
Free testosterone climbs further than total does, the tell that it's letting hormone loose rather than making it.
Also called Eurycoma longifolia, Longjack, Malaysian Ginseng, Pasak Bumi, Tung Saw
Who it's forAny man taking a testosterone booster for libido and gym drive.
The item
Three squares: proven in human trials. Two: a strong signal. One: early human data. Striped: the trials disagree.
Start today
- Check tonight whether your tongkat brand publishes a heavy-metal test on the batch.
- The form the studies used: The trial product was a standardized hot-water extract of the root, not raw root powder.
How you'll know it's working
- Track
- Tension, anger, confusion, and salivary cortisol
- When to judge
- 4 weeks - the length of the stress trial
Why it works
Its best-supported route is not making more testosterone but freeing what is already there. It cuts the binding of the blood protein that holds testosterone inactive. That explains the pattern in its trials: free testosterone rises more than total testosterone. A second idea is that it directly supports testosterone production in the testes, but that is less established.
Where it fits
Tongkat Ali is a move in 3 protocols. Each one opens the plan it sits in.
What people say
Here is what doctors, influencers and men online say about Tongkat Ali, word for word.
Experts
Clinicians, authorities
“This systematic review and meta-analysis of the literature supports the possible use of E. longifolia supplementation for enhancing testosterone production.”
“Reports of clinically apparent liver injury attributed to tongkat ali in body builders have recently appeared.”
“Limited clinical trial data suggest potential benefit for erectile dysfunction, but trials were of poor quality.”
Gurus
Podcasts, channels, influencers
“And then there's some evidence that this herb a lot of people talk about these days, Tongkat Ali, may also help a little bit.”
“There is insufficient evidence to suggest that Tongkat Ali increases testosterone levels, though early studies show some promise.”
“Athletes love Tongkat Ali, because it helps increase stamina and endurance during physical activity, and afterward, it supports muscle growth, repair, and recovery.”
Regular people
Forums, reviews, comments
“The biggest difference was during and before intercourse, I do get aroused way faster than before.”
“I dont think 30% is enough to be a big deal. Lets say you are mid range of 600. It could boost you up to 750-800. Thats still not HIGH.”
“I was able to get through the intense nausea, felt good for a few weeks and then was getting CRIPPLING anxiety whenever I'd take them.”
The studies
Every study behind this page.
- Phytoandrogenic properties of Eurycoma longifolia as natural alternative to testosterone replacement therapyPubMed, PMID 24386995
- Review on a Traditional Herbal Medicine, Eurycoma longifolia Jack (Tongkat Ali): Its Traditional Uses, Chemistry, Evidence-Based Pharmacology and ToxicologyPubMed, PMID 26978330
- Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjectsPubMed, PMID 23705671
- Eurycoma longifolia (Jack) Improves Serum Total Testosterone in Men: A Systematic Review and Meta-Analysis of Clinical TrialsPubMed, PMID 36013514
- Efficacy of Tongkat Ali (Eurycoma longifolia) on erectile function improvement: systematic review and meta-analysis of randomized controlled trialsPubMed, PMID 26365449
- Eurycoma Longifolia as a potential adoptogen of male sexual health: a systematic review on clinical studiesPubMed, PMID 28259255
- Do "testosterone boosters" really increase serum total testosterone? A systematic reviewPubMed, PMID 37697053
- An evidence-based systematic review of tongkat ali (Eurycoma longifolia) by the Natural Standard Research CollaborationPubMed, PMID 23419023
- Registered trial NCT06100432Trial registry
- Registered trial NCT05347329Trial registry
Words on this page
- PMID
- A study's ID number in PubMed, the public index of medical research.
It frees what you've got, it makes none.
Emergency: call 911.
I am not a doctor. This is not medical advice. This is self-education. Talk to a physician who has your history before you change anything.