What it is
Tongkat ali is a Southeast Asian shrub whose root contains eurycomanone and related quassinoids that support endogenous testosterone production and SHBG modulation.
Supplement · Adaptogen & Androgen Support
Tongkat Ali (Eurycoma Longifolia)
Longjack, pasak bumi
200–400 mg (standardised 2% eurycomanone) · vegan · gluten-free · 60 caps
low-testosteronefatigueLow libidohormonal imbalance adrenal glandlivertestis
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How it works
Active quassinoids appear to free testosterone from SHBG binding and stimulate Leydig cell function under HPG-axis suppression. Adaptogenic stress modulation reduces cortisol-driven T suppression.
Who should take it
Midlife men with declining T markers, athletes under prolonged training stress, men with idiopathic infertility. Use standardised extracts (2% eurycomanone).
Avoid / careful
Hormone-sensitive cancers, pregnancy, adolescents. Avoid unstandardised "raw root" powders.
When to take it
Morning
Noon
Evening
Night
How to take it
With food
Empty stomach
Before food
FAQs
Frequently asked
What is the active compound in Tongkat Ali?
The primary active compounds are quassinoids, notably eurycomanone.
How does Tongkat Ali affect testosterone?
It may increase total and free testosterone by reducing SHBG binding and potentially stimulating Leydig cell function.
Can Tongkat Ali help with stress?
Yes, it has adaptogenic properties that can help modulate cortisol, a key stress hormone.
Research summary
A plain-English read of the literature behind this supplement. Not a clinical recommendation.
Malaysian and Polish RCTs at 200 mg/day show testosterone rises in stressed and low-T men. Stress and fertility benefits are also documented.
From the blog
Editorial notes
SacredBod's longer take on Tongkat Ali (Eurycoma Longifolia) — context the structured blocks above don't capture.
Tongkat Ali (Eurycoma Longifolia) is a adaptogen & androgen support supplement. Tongkat ali is a Southeast Asian shrub whose root contains eurycomanone and related quassinoids that support endogenous testosterone production and SHBG modulation.
How it works
Active quassinoids appear to free testosterone from SHBG binding and stimulate Leydig cell function under HPG-axis suppression. Adaptogenic stress modulation reduces cortisol-driven T suppression.
Who it’s for
Midlife men with declining T markers, athletes under prolonged training stress, men with idiopathic infertility. Use standardised extracts (2% eurycomanone).
Dosage & timing
- Typical dose: 200–400 mg (standardised 2% eurycomanone)
- Best time: morning
- With food: with-food
- Expected onset: 4–8 weeks for hormonal markers.
- Cycling: 5 days on, 2 off.
India context
Availability on Amazon India is currently limited or import-only for this form. International brands (iHerb, NOW Foods, Doctor’s Best) ship to India with variable customs handling. Local Ayurvedic equivalents may offer overlapping benefits.
Safety
Hormone-sensitive cancers, pregnancy, adolescents. Avoid unstandardised “raw root” powders.
Added to your stack.