Tongkat Ali

A herbal extract derived from the roots of the Eurycoma longifolia plant

EffortEasy
TimingMorning, With food, Cycle on and off

Often taken withZinc, Ashwagandha, Vitamin D

Evidence-backed benefits

How Tongkat Ali can help, goal by goal, with the studies behind each score.

Testosterone

19XP

Raises testosterone in some men, especially stressed or older men with low levels, in small trials.

Studies1

Popular claims that did not hold up (1)

People often expect Tongkat Ali to help with these. The studies say otherwise, so they are not scored as benefits.

Erection Support5XPNo significant improvement in erection scores when trials are pooled.

How to read XP

Each score is for this supplement and that specific goal, not a general rating.

XP combines how reliable the research is with how much difference it usually makes. Higher means stronger evidence for that supplement and that goal.

Limited<15 XPModest15–27 XPModerate28–44 XPReliable45–69 XPHigh70+ XP

Dosage

What studies commonly use for Tongkat Ali, and how it is usually taken.

Usual dose

200–300 mg per day

200–300 mg/day of standardized extract

How to take it

Morning
With food
Cycle on and off

See study range

200–400 mg/day (standardized to 1–2% eurycomanone)

Your journey

Testosterone comes first (week 4 → month 3); Testosterone takes longest (week 4 → month 3). An estimate from the studies' timelines, not a promise: everyone responds differently.

Testosterone

Week 4 → Month 3

From the first noticeable effect to roughly full strength. Colour follows the XP tier of each benefit.

Make it a habit

These gains come from steady use, not a single dose. Keep Tongkat Ali in your routine for about month 3 before you judge it.

Safety

What to know before you take Tongkat Ali.

Safety rating

Use with care

Dose and timing matter.

Restlessness and poor sleepCommon. Take it in the morning.
Stomach crampsCommon on an empty stomach. Eat first.
Contamination in cheap productsSome imported roots contain lead or mercury. Choose tested brands.

Check with a doctor first if you have or are at risk of prostate cancer.

General information, not medical advice. If you are pregnant, take medication or have a health condition, check with a doctor or pharmacist first.