Overview
Water-extracted standardized tongkat ali for testosterone and stress.
- 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.
Standardized eurycomanone extract for sperm quality.
Mechanism of action
Eurycomanone reduces SHBG-bound testosterone and lowers cortisol.
- · Eurycomanone reduces SHBG-bound testosterone
- · lowers cortisol
Effects on the body
Organ system effects
Evidence-based benefits
Raises free testosterone in stressed adults
Moderate evidencePotential side effects
- · Insomnia if taken 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)
- ·Hormone-sensitive cancers (breast, prostate, ovarian, uterine)
- ·Hormonal contraceptives, HRT, tamoxifen, aromatase inhibitors
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 (Physta) — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Tongkat Ali (Physta) third party tested NSF
CapsulesPre-measured Tongkat Ali (Physta) capsules — easiest for travel and consistent daily dosing without scoops or scales.Tongkat Ali (Physta) capsules
PowderBulk unflavored Tongkat Ali (Physta) powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Tongkat Ali (Physta) powder unflavored
Best sellersMost-purchased Tongkat Ali (Physta) products on Amazon — a quick way to see what's reviewed widely before you commit.Tongkat Ali (Physta) best sellerScientific evidence8Show studiesHide studies
Tongkat ali on stress and hormones
Talbott SM, et al.
4-week DB-RCT in 63 moderately stressed adults.
Physta lowered cortisol 16% and raised testosterone 37% vs placebo.
PubMed: Tongkat Ali (Physta) — Raises free testosterone in stressed adults
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Google Scholar: Tongkat Ali (Physta) — clinical evidence
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