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adaptogenEVIDENCEBUSOTC

Tongkat Ali

aka Eurycoma longifolia · Longjack

Southeast Asian root (Eurycoma longifolia) used for testosterone support, stress, and energy.

Dose range200–400mg
Half-lifeh
Onsetmin
Safety4/5medium evidence base

Mechanism of action

Quassinoids modulate cortisol and support endogenous testosterone production.

Benefits

  • Testosterone support in stress

    EVIDENCEB

    Talbott et al. 2013.

  • Stress and mood

    EVIDENCEB

    Smaller RCTs.

Side effects

  • Insomnia (high dose)uncommonmild
  • Restlessnessuncommonmild

Where to buy

Affiliate links
VendorProductSizePricePer unit
Nootropics DepotFeatured 4.8Tongkat Ali 200:1 Extract, 60ct (200mg)60 × 200mg$34.99$0.58Buy
Double Wood Supplements 4.4Tongkat Ali 200:1, 60ct (200mg)60 × 200mg$24.99$0.42Buy