Muira Puama for Men: Traditional Use, Evidence & Dosage

By Jordan Harvey · 21 July 2026 · Updated 21 August 2026 · 8 min read

Muira puama is an Amazonian shrub with a long folk reputation as a male tonic — with a folk reputation as a men’s tonic that is strong in Brazil. That reputation has carried it into the UK supplement aisle, where it is sold as a herbal pick-me-up for energy and general vitality. Here is the honest summary up front: the traditional reputation is centuries old, but the modern human evidence is very thin and mostly low-quality. This UK guide explains what muira puama is, where its reputation comes from, what the limited research actually says (and does not say), how it tends to be dosed, what we know about safety, and where it sits among better-studied men’s herbs.

What Is Muira Puama?

Muira puama is a small flowering shrub or tree native to the Amazon basin, chiefly in Brazil. The species most often used in supplements is Ptychopetalum olacoides, though the common name is also applied to closely related plants. The parts traditionally used are the bark and root wood, and these are the parts used in traditional preparations. In Brazilian folk medicine the wood has been brewed into teas and tinctures and taken as a general tonic for tiredness and low vitality.

It is worth separating two things from the very start, because the marketing rarely does. There is traditional use, which is broad, old and culturally important; and there is clinical evidence, which for muira puama is sparse and weak. Most product copy leans heavily on the romance of the Amazon while quietly borrowing the credibility of “research” that, on closer inspection, is very limited.

Where the Reputation Comes From

Muira puama’s standing rests almost entirely on tradition rather than trials. For generations it has been used by communities in the Amazon as a tonic wood — boiled, steeped or tinctured and taken for energy, stamina and general male wellbeing. European herbalists picked it up in the nineteenth century, and it eventually appeared in some herbal pharmacopoeias as a nerve tonic and restorative.

That long history explains the marketing, but it is not the same thing as evidence. Traditional reputation tells you a plant has been valued and used; it does not, on its own, tell you what it does in a controlled setting. As we will see, when researchers have actually looked, the human data has been small and methodologically weak — which is exactly why an honest reading separates the folklore from the science.

What the Evidence Actually Shows

This is where honesty matters most. Muira puama has no authorised European (EFSA) health claim, so nothing below should be read as a benefit you can expect from any product. Each finding is reported as a passive observation at the dose studied, with the standard caveat that ingredient findings do not transfer to any finished supplement.

The human evidence is thin and uncontrolled Evidence weak

Most of the human material cited for muira puama traces back to a small number of open-label observations published by the French clinician Jacques Waynberg in the early 1990s. These were uncontrolled reports — there was no placebo group and no randomisation — which places them near the bottom of the evidence ladder. In Waynberg’s observations, a proportion of men taking a muira puama preparation reported improvements in self-rated sexual function; because the studies were uncontrolled and unpublished in peer-reviewed form, these figures cannot be treated as reliable outcomes.

These are observations about the muira puama ingredient from uncontrolled reports at the doses studied. They are not health claims, and they do not transfer to any finished product, including Blue Power, which does not contain muira puama.

Traditional use: energy and vitality Traditional use only

The clearest thing that can be said about muira puama is what tradition says: it has been used as a tonic for energy, stamina and general men’s wellbeing. This is a statement about how the plant has been used historically, not a proven physiological effect. Modern controlled trials confirming any energy or vitality outcome in healthy men are not available, so this remains folk reputation rather than established science.

Laboratory and animal work Preliminary only

Beyond the human observations, there is a scattering of laboratory and animal research — for example, studies in rodents exploring effects on the nervous system and stress responses. This kind of work can generate hypotheses, but it does not establish that anything similar happens in people taking a supplement. On the current evidence, muira puama’s human profile remains largely unproven.

Typical Dosage & Forms

There is no officially established dose, because there is no authorised health claim to anchor one. Across traditional preparations and modern products, a common figure is around 1–1.5g/day of dry extract, usually in capsule form, sometimes standardised to a stated extract ratio. Traditional teas and tinctures used the raw bark and root in less precise amounts, which is one reason historical “doses” are hard to compare with modern capsules.

Is It Safe? Side Effects

In the small, short-term reports available, muira puama appears reasonably well tolerated, with no consistent pattern of serious side effects described. That said, the safety database is genuinely thin: there are no large or long trials in healthy men, so the absence of reported problems partly reflects the absence of good studies rather than proven safety.

Muira Puama vs Other Men’s Herbs

If your interest in muira puama comes from its traditional reputation, it helps to see where it sits against herbs with more human data behind them. For broader context, see our overview of herbal supplements for men, our explainer on horny goat weed, and our guide to men’s herbal supplements.

The honest takeaway: muira puama is one of the less-studied herbs in the men’s category. Its long folk reputation is real and interesting, but it has not been matched by modern controlled research. If you are choosing on evidence rather than tradition, treat muira puama as a low-evidence option and read each herb’s research profile on its own merits.

Frequently Asked Questions About Muira Puama

The Bottom Line

Muira puama is a genuinely interesting Amazonian herb with a long folk reputation as a men’s tonic that is centuries in the making. But reputation and evidence are not the same thing. The modern human research is very limited, resting mainly on small uncontrolled observations, and there are no robust trials confirming what it does in healthy men. Treated honestly, muira puama is a low-evidence option whose appeal is historical rather than scientific.

If you are choosing supplements on evidence rather than romance, that does not mean muira puama is worthless — it means the claims around it should be read with caution. Look at the wider field of herbal supplements on their individual merits, buy from suppliers that provide a Certificate of Analysis, and check with your GP if you take medication or have a medical condition.