SupplementEmergingHormonal Support

Tongkat Ali (Eurycoma)

Also known as Tongkat Ali

Half-life

~4–5 hours

What is Tongkat Ali (Eurycoma)?

Southeast Asian herb with evidence for free testosterone increase and cortisol reduction.

How Tongkat Ali (Eurycoma) works

Quassinoids (especially eurycomanone) inhibit SHBG to free bound testosterone; stimulate LH release to increase Leydig cell testosterone production; and modulate cortisol-binding globulin to reduce stress effects.

Benefits & uses

Supports testosterone (esp. if low/stressed)
Libido
May reduce stress/cortisol
Well-being

Common uses: Testosterone support, libido, cortisol reduction, sperm quality, muscle mass.

Muscle

Tongkat Ali (Eurycoma) dosage

Typical dose: Longjack extract 200–400 mg/day standardized to 1–2% eurycomanone (MIT 100:1 extract). Morning dosing.

Tongkat Ali (Eurycoma) half-life

~4–5 hours (eurycomanone in plasma)

Tongkat Ali (Eurycoma) side effects

Insomnia at high doses. Mild and generally safe.

Insomnia at high doses or late evening use
May increase irritability at high doses
Do not combine with testosterone therapy without medical supervision
Generally well tolerated
Insomnia if taken late
Restlessness

Commonly stacked with

Ashwagandha (KSM-66)Zinc Fadogia Agrestis

Track Tongkat Ali (Eurycoma) in Protokol.

Log doses, model half-lives, check interactions, and line it all up against your bloodwork. Free on iPhone and Android.