Who this is for: Men who've decided to try tongkat ali and want to take it the way the research did.
What you'll get: The doses 5 human studies used, what's known about timing and taking it before bed, and how long the trials ran.
Reading time: 6 minutes. Every study is linked, so you can check our work.
The tongkat ali dosage used in the main human studies was 100 to 400 mg a day of a root extract, most often 200 mg, taken daily for 4 to 12 weeks. That's the whole answer in one line.
The rest of this page is the detail behind it, because the number on its own is easy to get wrong. A 200 mg capsule of standardized extract and a 200 mg scoop of ground root are not the same thing, and many labels won't tell you which one you're holding.
You have more control left than you think. Getting the dose right is one small part of it. Sleep, training and sunlight do the heavy lifting.
How much tongkat ali per day?
Here's what each of the 5 human studies we trust actually gave people, and for how long.
| Study | Who was in it | Daily dose | How long |
|---|---|---|---|
| Talbott et al., 2013 (placebo-controlled) | 63 moderately stressed adults | 200 mg hot-water root extract | 4 weeks |
| Chinnappan et al., 2021 (double-blind, placebo-controlled) | 105 men aged 50 to 70 | 100 or 200 mg water root extract | 12 weeks |
| Tambi et al., 2012 (no placebo group) | 76 male clinic patients with age-related symptoms | 200 mg water-soluble extract | 1 month |
| Henkel et al., 2014 (pilot, no placebo group) | 25 active men and women aged 57 to 72 | 400 mg extract | 5 weeks |
| Leisegang et al., 2022 (review of 9 studies) | Men across 5 randomized trials | Varied | Varied |
So the range is 100 to 400 mg a day. 200 mg is the dose that shows up most. Only one of these studies, the small 2014 pilot, used 400 mg.
Is more better?
Not in these studies. The 2021 trial is the only one here that tested two doses (100 mg and 200 mg, each against placebo), and testosterone changes showed up sooner at 200 mg than at 100 mg. Nobody has tested doses above 400 mg in these trials, so there's no evidence here that going higher does anything except cost more. Stay inside the range the studies used.
The extract matters more than the milligrams
The trials above all used an extract, not raw root powder, and the three that describe it used a water-based extract. That's the detail most labels skip. When you compare products, look for:
- "Root extract", not just "tongkat ali powder"
- A ratio on the label (for example 100:1), so you know how concentrated it is
- One ingredient, so the dose on the label is the dose you're getting
- Heavy-metal testing, stated on the label or the brand's site
One honest caveat: at least two of these trials (2013 and 2021) used the same branded, standardized extract, and the 2021 trial was funded by the company that makes it. Results from one extract may not carry over to every other extract on the shelf.
When to take tongkat ali
None of the 5 studies tested morning versus evening, or with food versus without. They gave people a daily dose and measured what happened over weeks. So anyone who tells you there's a "best time" backed by research is guessing.
What we'd do:
- Take it at the same time every day, so you don't forget
- Pair it with something you already do, like breakfast or your morning coffee
- If your label suggests taking it with food, follow the label
Consistency is what the trials had in common. Every one of them was a daily dose, every day, for weeks.
Can you take tongkat ali before bed?
None of these studies tested it, so we can't tell you it helps or hurts your sleep. If you take it in the evening and your sleep feels off, move it to the morning. Sleep is worth more to your energy than any capsule, so protect it first.
How long does tongkat ali take to work?
The trials ran from 4 to 12 weeks. That's the window the research covers.
- 2 weeks: in the 2021 placebo-controlled trial of 105 men aged 50 to 70, the authors reported changes in fatigue and quality-of-life scores within 2 weeks at 200 mg a day.
- 4 to 5 weeks: the 2013 stress study, the 2012 study and the 2014 pilot all measured their results at 4 to 5 weeks.
- 12 weeks: the longest trial in this set. It tracked people at weeks 2, 4, 8 and 12.
Our take: give it at least a month at a steady daily dose before you judge it. Taking it for three days and deciding it "doesn't work" tells you nothing, because nobody in the studies was measured that early.
And be fair to it. If you're sleeping five hours and sitting for ten, no root is going to cover for that.
Should you cycle tongkat ali?
You'll see a lot of advice online about cycling: 5 days on, 2 off, or a month on and a week off. None of the human studies here tested cycling. They all gave a steady daily dose for 1 to 3 months.
What we know about safety comes from those same short trials. The 2021 trial checked blood counts, cholesterol, and liver and kidney function over 12 weeks and found no safety-related changes that mattered clinically. The 2022 review said it may be a "safe and promising" option, while saying more research is needed.
What nobody knows yet is how it behaves past 12 weeks. There's no long-term data in this set. If you plan to take it for longer, that's a conversation to have with your doctor, ideally with bloodwork before and after.
Our dose, and why we're upfront about it
All Day Fire Tongkat Ali is version one: 400 mg of a 100:1 hot-water root extract per serving, one ingredient, made in small batches by a US manufacturer and tested for heavy metals.
400 mg sits at the top of the range the studies used. To be straight with you: only the 2014 pilot used 400 mg. Most of the trials used 200 mg, often of a branded standardized extract. The studies are about tongkat ali, not about our bottle.
That's why we tell you exactly what's in the capsule. You'd find out anyway.
The dose that matters most
Tongkat ali is one tool. The things that matter most for your energy and drive cost nothing:
- Sleep 7 to 9 hours
- Lift heavy things a few times a week
- Get sunlight early in the day
- Do something hard on purpose
Get those right, take tongkat ali at a studied dose every day for at least a month, and then decide. For the full picture on what it is and what the research found, read our tongkat ali guide.
Talk to your doctor before you start, especially if you take any medication.
FAQ
What is the right tongkat ali dosage per day?
The main human studies used 100 to 400 mg a day of a tongkat ali root extract, most often 200 mg. Nobody has tested higher doses in these trials, so stay inside that range and talk to your doctor before starting.
How long does tongkat ali take to work?
The human trials ran from 4 to 12 weeks. In a 2021 placebo-controlled trial of men aged 50 to 70, the authors reported changes in fatigue scores within 2 weeks. Give it at least a month at a steady daily dose before you judge it.
Should I take tongkat ali in the morning or at night?
None of the human studies we cite tested timing. Take tongkat ali at the same time every day so you stay consistent. If an evening dose seems to affect your sleep, move it to the morning.
Is 400 mg of tongkat ali too much?
400 mg a day is the top of the range used in human studies. A 2014 pilot gave 400 mg of extract daily for 5 weeks to active adults aged 57 to 72. Most other trials used 200 mg. Ask your doctor what makes sense for you.
Do you need to cycle tongkat ali?
None of the human studies we cite tested cycling. The trials gave a steady daily dose for 1 to 3 months, and none of them has long-term safety data. If you plan to take it longer than that, check in with your doctor.
Sources
- Talbott SM, et al. Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjects. J Int Soc Sports Nutr, 2013. PMID 23705671
- Chinnappan SM, et al. Effect of Eurycoma longifolia standardised aqueous root extract-Physta on testosterone levels and quality of life in ageing male subjects: a randomised, double-blind, placebo-controlled multicentre study. Food Nutr Res, 2021. PMID 34262417
- Tambi MI, et al. Standardised water-soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late-onset hypogonadism? Andrologia, 2012. PMID 21671978
- Henkel RR, et al. Tongkat Ali as a potential herbal supplement for physically active male and female seniors: a pilot study. Phytother Res, 2014. PMID 23754792
- Leisegang K, et al. Eurycoma longifolia (Jack) Improves Serum Total Testosterone in Men: A Systematic Review and Meta-Analysis of Clinical Trials. Medicina, 2022. PMID 36013514
Written and reviewed by Nick Lange, All Day Fire. Last reviewed 5 Oct 2026.
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. This article is for information only and is not medical advice. Talk to your doctor before starting any supplement.