Evidence-based·Last reviewed May 30, 2026·How we grade evidence

Muira Puama

Botanical

Useful mainly for no use is supported by controlled trials; traditional aphrodisiac with minimal evidence.

Quick decision guide

May help most

no use is supported by controlled trials; traditional aphrodisiac with minimal evidence

Common dosing range

1–1.5 g/day dried bark or root (traditional)

When to expect effects

Unclear (traditionally weeks)

Watch out for

Essentially no modern controlled safety or efficacy data; avoid in pregnancy

What is it

Muira puama (Ptychopetalum olacoides) is a small tree native to the Amazon rainforest whose bark and roots have been used in traditional Brazilian medicine as an aphrodisiac, tonic, and remedy for fatigue. It is sometimes called 'potency wood' and is commonly included in supplement blends for male sexual function.

Is it worth it for you?

Use this as a quick fit check, not a diagnosis.

Worth considering if…

You accept it as a traditional remedy with no controlled-trial backing
You are using it within a clinician-monitored context and tolerate it well

Probably skip if…

You want evidence-based help for sexual function or fatigue
You take blood pressure, cardiovascular, or CNS-active medication
You are pregnant or breastfeeding

Evidence at a glance

fatigue and convalescence

Mixed Evidence
Effect
Unestablished
Best fit
people using it traditionally as a tonic, with no proven benefit
Time
Unclear

cognitive function

Mixed Evidence
Effect
Unestablished
Best fit
none established; only animal/mechanistic signals exist
Time
Unclear

Evidence for 2 uses

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

fatigue and convalescence

Supplement benefit
Mixed Evidence

Traditional use as a tonic for fatigue is not backed by controlled human trials. No clinical data demonstrate an effect on energy or recovery.

Effect size
Unestablished
Time to effect
Unclear
Best fit
people using it traditionally as a tonic, with no proven benefit

Bottom line: Muira puama's tonic and anti-fatigue reputation is unsupported by clinical evidence.

SourcePiato et al., 2010 — PubMedSiqueira et al., 2003 — PubMed

cognitive function

Mechanism only
Mixed Evidence

Cognitive claims derive from limited animal research suggesting effects on cholinergic and noradrenergic pathways. There are no human trials, so any cognitive benefit is purely mechanistic speculation.

Effect size
Unestablished
Time to effect
Unclear
Best fit
none established; only animal/mechanistic signals exist

Bottom line: Cognitive benefits are limited to animal data and have no human support.

Sourceda et al., 2004 — PubMedFigueiró et al., 2010 — PubMed

How it works

Muira puama bark and root contain a complex mixture of compounds, including sterols (notably beta-sitosterol and lupeol), triterpenes, fatty acids, alkaloids (such as muirapuamine), and essential oils. The exact bioactive compounds and mechanisms responsible for traditional aphrodisiac and tonic effects remain poorly characterized. Limited animal research suggests possible effects on neurotransmitter systems, with reported actions on acetylcholine and noradrenergic pathways that could theoretically contribute to cognitive enhancement and sexual function. Some preliminary research suggests possible effects on testosterone or steroid metabolism, but human clinical data are sparse. Most evidence for muira puama's traditional uses comes from anecdotal reports, older clinical observations, and small uncontrolled studies. Well-controlled modern clinical trials are essentially absent, making it difficult to draw confident conclusions about efficacy for any specific indication.

How to take it

1. Typical dose
1–1.5 g/day dried bark or root, or 250–1,000 mg extract per dose
2. Timing
Divided two or three times daily
3. With food
With or without food
4. How long to try
Trial a few weeks; discontinue if no benefit

What to track

libido or sexual function
energy
sleep (stimulating effects)
blood pressure

3 commercial forms

Compare the main delivery options and what they’re best suited for.

Dried bark and root

Used in traditional Amazonian preparations and modern capsules.

Traditional whole-herb form

Liquid extract / tincture

Common in herbalist combination formulas. Alcohol may improve extraction of fat-soluble compounds.

Alcohol-based extraction

Concentrated extract (e.g., 10:1)

Common modern supplement form.

Concentrated by ratio rather than active compound

Safety

Know the common side effects, key cautions, and who should avoid it.

Common side effects

mild GI upsetinsomnia or restlessness at high doses

Who should avoid it

  • pregnant or breastfeeding women
  • people with cardiovascular disease or hypertension
  • adolescents

Pregnancy & breastfeeding

Avoid in pregnancy and breastfeeding due to insufficient safety data.

Interactions

antihypertensive medicationsMinor

theoretical blood pressure effects; data are very limited

CNS-active medicationsMinor

possible additive stimulant effects

stimulantsMinor

possible additive overstimulation

Choosing a product

What to look for on the label — and what to be skeptical of.

Look for…

botanical identity (Ptychopetalum olacoides)
part used (bark/root)
clear extract ratio and dose per serving

Be skeptical of…

clinically proven aphrodisiac
boosts testosterone
restores energy and virility

Frequently asked questions

Does muira puama actually work for sexual function?⌄

Traditional use as 'potency wood' is widespread, but modern well-controlled clinical trials are essentially absent. Some older uncontrolled observations and combination product studies suggest possible benefit, but evidence is weak.

Is muira puama a stimulant?⌄

Muira puama is not typically classified as a stimulant in the way caffeine is, but high doses may produce restlessness or sleep disturbance in some users.

Can women take muira puama?⌄

Yes, some combination products marketed for female sexual function include muira puama. However, specific evidence for women is limited. Avoid in pregnancy and breastfeeding.

How long until I notice effects?⌄

Traditional use suggests effects may emerge over several weeks of consistent use. Specific clinical guidance on time course is limited.

Is muira puama safe long-term?⌄

Long-term safety has not been well studied. Most traditional use is intermittent or short-term.

References by claim

fatigue and convalescence

Piato et al., 2010 — PubMed (2010) link

Siqueira et al., 2003 — PubMed (2003) link

cognitive function

da et al., 2004 — PubMed (2004) link

Figueiró et al., 2010 — PubMed (2010) link

Track Muira Puama with Pilora

Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.

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Evidence-based·Last reviewed May 30, 2026·Evidence current as of May 30, 2026·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.