Overview
Standardized eurycomanone extract for sperm quality.
- Whole dried plant material (root, leaf, flower, or aerial parts depending on the species)
- Standardized hydroethanolic or aqueous extract (capsule, tincture, or tea)
- Powdered traditional preparation used in Ayurvedic, TCM, or Western herbal practice
- Standardized extract capsule
- Liquid tincture (alcohol or glycerin)
- Powdered whole herb
- Traditional decoction or tea
Forms & variants of Tongkat Ali
Different chemical forms of Tongkat Ali behave differently. Browse each form's mechanism, bioavailability, and best-use context.
Malaysian root extract that frees bound testosterone via SHBG reduction.
Malaysian root with moderate human evidence for raising free testosterone and reducing SHBG.
Water-extracted standardized tongkat ali for testosterone and stress.
Mechanism of action
Reduces SHBG-bound testosterone; modulates Leydig cell steroidogenesis.
- · Reduces SHBG-bound testosterone
- · modulates Leydig cell steroidogenesis
Effects on the body
Organ system effects
Evidence-based benefits
Improves sperm parameters in subfertile men
Moderate evidencePotential side effects
- · Insomnia if late
Drug interactions
Safety & non-supplemental interactions
Educational summary — always confirm with your clinician or pharmacist before starting, stopping, or combining with prescription therapy.
- ·Pregnant or breastfeeding (insufficient safety data)
- ·Children under 18 (unless directed by a clinician)
Supplement interactions
- A high-quality multivitaminCovers micronutrient cofactors that support most supplement pathways.
- Omega-3 (EPA/DHA)Foundational anti-inflammatory support that complements most regimens.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
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Third-party testedIndependently verified Tongkat Ali (Fertility) — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Tongkat Ali (Fertility) third party tested NSF
CapsulesPre-measured Tongkat Ali (Fertility) capsules — easiest for travel and consistent daily dosing without scoops or scales.Tongkat Ali (Fertility) capsules
PowderBulk unflavored Tongkat Ali (Fertility) powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Tongkat Ali (Fertility) powder unflavored
Best sellersMost-purchased Tongkat Ali (Fertility) products on Amazon — a quick way to see what's reviewed widely before you commit.Tongkat Ali (Fertility) best sellerScientific evidence8Show studiesHide studies
Tongkat ali on idiopathic infertility
Tambi MI, Imran MK
Open trial in 75 men.
Improved sperm concentration, motility, and morphology.
PubMed: Tongkat Ali (Fertility) — Improves sperm parameters in subfertile men
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PubMed: Tongkat Ali (Fertility) — dose response
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Google Scholar: Tongkat Ali (Fertility) — clinical evidence
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Includes preprints, theses, and journal articles. Useful for tracking citation counts and follow-on work.