What Is Longjack (Tongkat Ali)?
Longjack (Tongkat Ali) is a standardized root extract of Eurycoma longifolia, a Southeast Asian herb used for centuries as a men's tonic. Remedy's Longjack delivers 1000 mg per serving in vegan capsules, concentrating the root's active quassinoids, led by eurycomanone.[1]Eurycoma longifolia: traditional uses, chemistry and pharmacology — Molecules (2016) View source
Also called Malaysian ginseng or pasak bumi, tongkat ali is studied mainly for testosterone, libido, stress, and exercise performance in men. For the full background, see our complete tongkat ali guide.
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Active compound: eurycomanone and related quassinoids
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Serving: 1000 mg per day in 2 vegan capsules
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Best for: men over 40, active adults, and stressed users
Longjack Benefits: Clinical Evidence
Tongkat ali has 4 benefit areas with human evidence, all studied at 200 to 400 mg of standardized extract daily. The effects are modest but repeat across independent trials, and they are largest in older or low-testosterone men. Here is what the research shows for each.
| Benefit Area |
Key Finding |
Dose Studied |
| Testosterone |
Higher serum total testosterone in men across 9 pooled trials[2]Eurycoma longifolia improves serum total testosterone: meta-analysis — Medicina (2022) View source
|
200–400 mg daily |
| Stress and mood |
Cortisol down about 16% and tension down 11% in stressed adults[3]Tongkat Ali on stress hormones and mood — J Int Soc Sports Nutr (2013) View source
|
200 mg, 4 weeks |
| Libido |
Improved sexual well-being scores versus placebo[4]RCT of PHYSTA extract for quality of life and sexual well-being — Evid Based Complement Alternat Med (2012) View source
|
300 mg, 12 weeks |
| Strength |
Improved handgrip strength in active seniors[5]Tongkat Ali for physically active male and female seniors — Phytother Res (2014) View source
|
400 mg, 5 weeks |
For a deeper breakdown, read what the research shows on tongkat ali.
How Tongkat Ali Works
Tongkat ali works mainly on hormones you already have rather than adding new ones. Its 2 core actions are freeing testosterone bound to SHBG into the active form, and lowering cortisol, which otherwise suppresses testosterone. These indirect effects build over 2 to 4 weeks of daily use.
This is an important distinction. Because longjack does not introduce hormones, its effect on any given person depends heavily on their starting point, which is why men with low or borderline testosterone respond most. It is not a steroid, and it will not push a healthy young man far beyond his normal range.
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Frees bound testosterone from SHBG into the active free fraction
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Lowers cortisol, protecting testosterone during stress
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Acts as an adaptogen, easing physical and mental load
Tongkat Ali for Testosterone
Testosterone support is the most-studied use of tongkat ali. In men with late-onset low testosterone, 200 mg daily for 1 month improved symptom scores and raised serum testosterone.[6]Tongkat ali as testosterone booster in late-onset hypogonadism — Andrologia (2012) View source Gains are largest in older or low-testosterone men, not young men with normal levels.
Tongkat Ali for Libido and Men's Vitality
Longjack is traditionally an aphrodisiac, and modern trials support modest libido benefits. A 12-week study in 109 men using 300 mg daily improved sexual well-being and quality-of-life scores. The effect is on desire and vitality, not on-demand erections, so it builds gradually over weeks.
Tongkat Ali for Stress and Energy
Tongkat ali behaves like an adaptogen for stress. In 63 moderately stressed adults, 4 weeks of a standardized extract lowered cortisol by about 16% and reduced tension by 11%. Because high cortisol suppresses testosterone, easing stress is one way longjack supports steady energy and drive.
- Cortisol dropped roughly 16% in stressed users
- Energy feels steady, with 0 caffeine involved
- Applies to both men and women under stress
Tongkat Ali for Muscle and Performance
Longjack offers modest performance support, mainly for older or low-testosterone men. In a trial of men with androgen deficiency, combining the extract with training improved strength and cardiorespiratory fitness more than training alone.[9]Eurycoma longifolia + exercise improves strength and fitness — Complement Ther Clin Pract (2021) View source It is not anabolic, so it supports rather than replaces training.
By lowering cortisol about 16% in one study, longjack may also ease the stress load that slows recovery. The best results come when your training, protein, and sleep are already consistent.
- Strength gains are clearest in men over 40 who lift
- Pairs well with creatine and adequate daily protein
- Young trained athletes see the smallest measurable change
Tongkat Ali for Women
Women can use tongkat ali too, usually at a lower 100 to 200 mg daily, mainly for stress and energy. One 4-week study that included 31 women found lower cortisol and tension. Evidence in women is limited, and it is not suitable during pregnancy, breastfeeding, or with hormone-sensitive conditions.
Why Choose Remedy's Longjack
Not all tongkat ali is equal, and potency varies widely between brands. Remedy's Longjack focuses on a clean, standardized, vegan formula so each capsule delivers a consistent active dose. Here is what sets it apart.
| What You Get |
Why It Matters |
| 1000 mg standardized extract |
Consistent eurycomanone dose in every serving |
| Vegan capsules |
Plant-based, with no gelatin or animal products |
| No unnecessary fillers |
Clean label focused on the active root extract |
| Made in the USA |
Produced under strict quality standards |
| Immune and vitality support |
Backed by research in middle-aged adults[7]Immunomodulation in middle-aged humans via Physta root extract — Phytother Res (2016) View source
|
Longjack Dosage
The standard tongkat ali dose is 200 to 400 mg of standardized extract once daily, ideally in the morning with food. Benefits build with consistency over 4 to 12 weeks, so daily use matters more than a large single dose. Match your amount to your goal below.
| Goal |
Daily Dose |
Timing |
| General vitality |
200 mg |
Morning, with food |
| Testosterone support |
200–400 mg |
Morning |
| Training and stress |
300–400 mg |
Morning |
| Women |
100–200 mg |
Morning |
For timing, cycling, and label tips, read our tongkat ali dosage guide.
What to Expect Week by Week
Tongkat ali is a slow-build supplement, not a stimulant, so results unfold over weeks. Setting realistic expectations helps you stay consistent long enough to notice the benefits. Here is a typical timeline at 200 to 400 mg daily.
| Timeframe |
What Many Users Notice |
| Weeks 1–2 |
Subtle shifts in energy, mood, and stress resilience |
| Weeks 2–4 |
Steadier drive and a clearer sense of vitality |
| Weeks 4–12 |
Fuller libido and hormone effects seen in studies |
Individual responses vary, and men who start with lower testosterone or higher stress tend to notice the most. Consistency across all 12 weeks matters more than a large dose.
Safety and Drug Interactions
Tongkat ali is generally well tolerated, and a 2020 toxicity study found no harm at typical doses.[8]Eurycoma longifolia-infused coffee oral toxicity study — Nutrients (2020) View source Still, it can interact with hormone, blood pressure, and diabetes medications, and some people should avoid it.
| Group or Drug Class |
What to Do |
| Hormone-sensitive conditions |
Avoid without physician guidance |
| Blood pressure or diabetes meds |
Ask a doctor before combining |
| Under 18, pregnant, or nursing |
Do not use |
Learn more about tolerability in our tongkat ali side effects and safety guide. This product is a supplement, not a treatment for diagnosed low testosterone.
Is Longjack Right for You?
Longjack fits best as a daily, evidence-based support tool rather than a quick fix. The men who benefit most tend to be over 40, dealing with stress, or noticing a gradual dip in drive and energy. Because the effects build over 4 to 12 weeks, it rewards consistency rather than occasional use.
It is a strong match if you want to support testosterone, libido, and stress balance naturally alongside good sleep and training. It is not the right choice if you expect an on-demand effect or a replacement for medical care. When in doubt, a simple blood test and a conversation with your doctor can confirm whether low testosterone is the real issue.
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Best fit: men over 40 with stress or fading drive
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Take it daily: effects build over 4 to 12 weeks
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Pair it with: sleep, resistance training, and balanced nutrition
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Not for: anyone under 18, pregnant, or nursing
Frequently Asked Questions
How much longjack should I take per day? +
Take 200 to 400 mg of standardized extract once daily, ideally in the morning with food. Beginners should start at 200 mg to judge tolerance. Clinical trials for testosterone, libido, and stress all used doses in this range for 4 to 12 weeks. Women typically use a lower 100 to 200 mg dose.
How long does tongkat ali take to work? +
Most people notice energy and mood changes within 2 to 4 weeks of daily use. Hormone and libido effects in studies appear at 4 to 12 weeks. There is no reliable same-day effect, so daily consistency matters most. Missing several days a week can extend the timeline noticeably.
Does tongkat ali really raise testosterone? +
Modestly, and mostly in men who start low. A meta-analysis of 9 trials found higher serum total testosterone with Eurycoma longifolia. Young men with normal levels usually see smaller changes. It frees testosterone bound to SHBG rather than producing new hormone, so results build gradually over several weeks.
When is the best time to take longjack? +
Morning with food is best, since tongkat ali can feel mildly energizing for some users. Take your 200 to 400 mg dose at the same time daily to keep blood levels steady. Avoid late-day doses if they disturb your sleep. Consistency in timing matters more than taking it before workouts.
Is tongkat ali safe to take every day? +
For most healthy adults, daily use at 200 to 400 mg appears well tolerated in studies up to 6 months. A 2020 toxicity study found no harm at typical doses. Some users cycle 5 days on and 2 off, though cycling is not required. Avoid it with hormone-sensitive conditions or interacting medications.
Can women take this longjack supplement? +
Yes, many women use 100 to 200 mg daily for stress and energy, and some studies included women. It is not suitable during pregnancy or breastfeeding, or with hormone-sensitive conditions. Start at the lower 100 mg dose and check with a doctor if you take hormonal or thyroid medication before using it.
What are the side effects of tongkat ali? +
Side effects are usually mild: insomnia, restlessness, or irritability, mostly with higher or later-day doses. They typically fade when you lower the amount or take it in the morning. In trials at 200 to 400 mg daily, serious effects were rare. Choosing a standardized, tested extract further lowers the risk.
Is tongkat ali like Viagra? +
No. Viagra is a prescription drug that produces an erection within about 1 hour. Tongkat ali is a supplement that supports libido and testosterone gradually over 2 to 4 weeks. It does not directly cause erections. If you have erectile dysfunction, see a doctor, since it can signal treatable health issues.
How is longjack standardized? +
Quality longjack is standardized to eurycomanone, the plant's main active quassinoid. Concentration is often shown as a ratio like 200:1 or a percent of eurycomanone. This is why a smaller concentrated dose can match a larger amount of weaker extract. Always match the eurycomanone content, not just the milligram number.
Can I stack longjack with other supplements? +
Yes. Tongkat ali has no known conflict with creatine, protein, ashwagandha, or maca, and these target different pathways. Many men pair it with ashwagandha for extra cortisol support. Keep tongkat ali at 200 to 400 mg daily and follow standard doses for the others. Space them out if your stomach is sensitive.
Does tongkat ali help with stress? +
Yes, modestly. In 63 stressed adults, 4 weeks of standardized extract cut cortisol by about 16% and lowered tension by 11%. Because cortisol competes with testosterone, easing stress supports hormones and energy. The effect applies to both men and women, though it is milder than dedicated stress adaptogens.
Who should not take tongkat ali? +
Avoid tongkat ali if you are under 18, pregnant, or breastfeeding, or if you have a hormone-sensitive condition such as prostate or breast cancer. People on blood pressure, diabetes, or hormone medications should ask a doctor first. It is a supplement, not a treatment for diagnosed low testosterone or erectile dysfunction.
Is this longjack vegan and made in the USA? +
Yes. Remedy's Longjack uses vegan capsules with no gelatin or animal products, and it is made in the USA under strict quality standards. Each serving provides 1000 mg of standardized tongkat ali root extract with no unnecessary fillers. This makes it suitable for plant-based diets and clean-label supplement routines.
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