OnePin Peptide Library · Hormonal
Tongkat Ali
Eurycoma longifolia · Long Jack
Tongkat Ali (Eurycoma longifolia, also called Longjack or Pasak Bumi) is a Southeast Asian medicinal plant traditionally used for male vitality, libido, and energy. Modern clinical research consistently shows Tongkat Ali increases free and total testosterone in subfertile men and reduces SHBG in older men - distinguishing it from many 'natural T-booster' supplements that lack supporting evidence.
Morning preferred (mild stimulant).
Start here. Every protocol below is ordered lowest-first. Begin at the smallest effective dose, hold about a week to assess tolerance, and step up only if needed.
How it works
Tongkat Ali's mechanism centers on hypothalamic-pituitary-gonadal axis modulation:
SHBG Reduction
Tongkat Ali reduces sex hormone-binding globulin, increasing free testosterone available for tissue effects. Particularly relevant in older men with elevated SHBG.
Testicular Steroidogenesis
Eurycomanone may directly support Leydig cell testosterone production.
Aromatase Inhibition
Mild aromatase inhibition reported in some studies - reduces estradiol from testosterone aromatization.
Cortisol Reduction
Multiple studies show reduced cortisol under stress, supporting the 'energy/recovery' use case.
Direct Cellular Effects
Eurycomanone has cytotoxic activity at high concentrations - mechanism for reported anti-cancer activity in some preclinical studies.
What to expect
Weeks 1-2: subtle effects.
Weeks 4-8: peak T effect.
Weeks 8-12: stable elevation.
Evidence
Interactions & stacking
What's safe to combine, and what belongs in a separate pin.
Keep separate
Side effects & safety
Commonly reported
- Mild stimulant effect
- Possible mild GI
- Insomnia (PM dosing)
Less common & notes
- Heavy metal contamination from low-quality sources (Southeast Asian sourcing risk).
- Acne/oily skin from elevated T.
- Anxiety/aggression rare.
- Long-term safety good per traditional use of quality-sourced product.
Pharmacokinetics
Storage. Capsule. Cool dry location.
Regulatory status
Dietary supplement (US, DSHEA). Traditional medicine in Southeast Asia.
Put it to work
Calculate, log & track
Open Tongkat Ali straight into OnePin with your vial and dose pre-filled, then let it handle the syringe math and remind you before the vial runs out.
Open Tongkat Ali in the app →Go deeper
The guide & community
The complete Tongkat Ali walkthrough, real protocol discussion and coaching live inside the BlessUp community on Skool.
Join the community ↗