Traditional Southeast Asian herb (Eurycoma longifolia) studied for testosterone support, stress reduction, and athletic performance.
How it works
Reduces cortisol and SHBG (sex hormone-binding globulin), potentially freeing more testosterone. Contains quassinoids and eurycomanone which may stimulate Leydig cell function.
Evidence-based uses
Studies show improvements in testosterone, cortisol ratio, and subjective energy. Effects more pronounced in stressed or aging individuals.
Clinical Evidence
Tongkat Ali 200mg/day for 4 weeks significantly reduced cortisol (−16%) and increased testosterone (+37%) in moderately stressed subjects. Improvements in tension, anger, and confusion.
May support lean body mass and recovery via hormonal optimisation. More research needed in athletic populations.
Clinical Evidence
Tongkat Ali supplementation showed improved lean body mass and muscular strength in physically active males over 5 weeks of strength training.
Safety
Tongkat Ali may have additive effects with exogenous testosterone, potentially increasing hormonal side effects.
Tongkat Ali may slightly lower blood pressure. Monitor if taking antihypertensives.
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1 products compared across Australian retailers. Sorted by price per serve.
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| Product | Price | /serve | |
|---|---|---|---|
Best BulkSupplements BulkSupplements Tongkat Ali Extract BulkSupplements | $28.90 | $0.24 |
Prices in AUD. Some links are affiliate links — we may earn a commission at no extra cost to you.
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Coenzyme
Coenzyme essential for cellular energy production.
Herb
Adaptogenic herb that may help the body manage stress and boost energy.
Tongkat Ali has 2 known interactions. Check if it's safe with your medications.
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This information is for educational purposes only and is not intended as medical advice. Always consult a healthcare professional before starting any supplement. Evidence ratings are based on peer-reviewed clinical research. Individual results may vary.