Does Methylene Blue Increase Testosterone? What Research Actually Shows

Methylene blue has well-documented effects on mitochondrial function. It does not have documented effects on testosterone levels in healthy humans. Those are two different things. While writing this, we found at least two brands blurring that line with research citations that do not exist.

• The biological connection is real, but the human evidence is not. The link between mitochondrial health and Leydig cell testosterone output is documented, but no study has tested whether methylene blue specifically influences that pathway in humans.
• The only real published study involves cisplatin-damaged rats. Methylene blue helped restore testosterone that the chemotherapy drug had suppressed, a protective effect under acute chemical damage, not evidence of baseline testosterone elevation.
• Two brands are citing fabricated research. Meraki Medicinal and Impact Health have published articles claiming methylene blue increases free testosterone by 15 to 24% in human males, citing studies that were never published anywhere.

Important: The FDA label for methylene blue injection (Provayblue) carries a boxed warning about serotonin syndrome with serotonergic medications, including SSRIs and MAOIs. Review the full adverse medications list before starting any methylene blue protocol.

It keeps coming up because methylene blue now shows up in longevity podcasts, metabolic health threads, and performance communities, and in those places testosterone keeps entering the conversation.

The curiosity makes sense. Testosterone is tied to energy, recovery, and physical performance, so anything linked to cellular energy gets asked about it sooner or later.

Whether that attention is earned comes down to what the research actually documents, not what forums guess at.

Methylene blue has over a century of medical use and a real body of research behind it, covering mitochondrial function, neuroprotection, cognitive performance, and cellular energy metabolism. That work is peer reviewed, and it is the reason we sell it.

Credibility like that also attracts claims the evidence does not support. On testosterone, we found some that go further than unsupported. They are fabricated.

Testosterone production is controlled by the hypothalamic-pituitary-gonadal (HPG) axis, a hormonal signaling cascade that begins in the brain. The hypothalamus releases gonadotropin-releasing hormone (GnRH), which signals the pituitary gland to release luteinizing hormone (LH).

LH travels through the bloodstream to the testes, where it binds to receptors on Leydig cells and triggers testosterone synthesis.

Leydig cells are where testosterone is actually made. Inside these cells, mitochondria do the first step: the enzyme CYP11A1, located on the inner mitochondrial membrane, converts cholesterol into pregnenolone, the first step in the steroid synthesis pathway.

From there, a series of enzymatic reactions in the smooth endoplasmic reticulum convert pregnenolone into testosterone. The entire process depends on mitochondrial energy and the transport of cholesterol into the mitochondria via a protein called StAR (steroidogenic acute regulatory protein).

Research does show that damaged mitochondria slow this process down. In rodent work, chronic stress reduced Leydig cell testosterone output by damaging mitochondria via disruption of the Atp5a1 protein (Xiong et al., 2022). A review by Monageng and colleagues describes oxidative stress suppressing the steroid-making enzymes including CYP11A1 and 3beta-HSD (Monageng et al., 2023).

When Leydig cell mitochondria are compromised, testosterone production falls.

None of this means that better mitochondrial function would push testosterone above its normal set point. The HPG axis runs on feedback loops, so if Leydig cells made more, the brain would signal for less. The system is not limited by Leydig cell ATP availability in healthy individuals. It is limited by hormonal signaling. Those are two different bottlenecks.

At the cellular level, methylene blue is a redox-cycling compound. Rojas and colleagues (2012) describe it taking electrons from NADH, one of the main electron donors in metabolism, and passing them further down the mitochondrial electron transport chain.

In that model it bypasses the first three complexes and hands electrons to cytochrome c, which feeds Complex IV. Researchers are interested in this detour because it could let cells keep making ATP when complexes I through III are not working well.

Much of the early work on this comes from Atamna et al. (2008), who found that methylene blue extended the lifespan of human fibroblast cells in culture, increases mitochondrial Complex IV activity by 30%, and enhances cellular oxygen consumption by 37 to 70%.

Those were cell-culture results at nanomolar concentrations. They tell us about mechanism, not about what a capsule does in a person.

Yang et al. (2017) and Rojas et al. (2012) took this work into the brain, reviewing studies where methylene blue's alternative electron transfer supported energy production in neurons and showed neuroprotective effects in models of oxidative stress and neurodegeneration.

Rojas and colleagues also review its study for memory and cognition. Put together, the documented research areas are mitochondrial support, alternative electron transfer, antioxidant activity, neuroprotection, and cellular energy enhancement. That research is real and peer reviewed. None of it is the same thing as raising testosterone, and we could not find a real study that says it is.

We found exactly one published study connecting methylene blue to testosterone levels. It was conducted by Gholami Jourabi et al. (2021), published in the peer-reviewed journal Andrologia, and it involved male Wistar rats given cisplatin, a chemotherapy drug known to cause severe testicular toxicity.

Cisplatin pushed the rats' testosterone levels down and damaged sperm parameters. Methylene blue, administered as an antioxidant intervention, helped restore those suppressed levels and reversed some of the histopathological damage.

It is a real and useful study. It shows a protective antioxidant effect in rats whose reproductive tissue had been chemically damaged.

What it does not show, and what the authors do not claim, is that methylene blue increases testosterone above baseline in healthy individuals. The testosterone increase observed was a restoration of cisplatin-suppressed levels back toward normal, not an elevation beyond normal.

That difference is the first thing to disappear when a study gets turned into marketing copy.

Outside of that single study, the research connecting methylene blue to hormone systems consists of one 1995 paper by Schreiber, published in Bratislava Medical Journal, which found methylene blue inhibited prolactin and cAMP increases in estrogenized male rats. That is the full scope of the MB-hormone research literature. Two animal studies, and neither one supports the testosterone claims you will see online.

Yes, there is a misinformation problem, and it shows up most where the research is real enough to borrow from.

In the testosterone category specifically, we found two brands publishing articles that cite human clinical trials showing methylene blue increases free testosterone levels. Those trials do not exist. The citations are fabricated.

If you are deciding what to put in your body based on research, you deserve to know whether that research is real. We checked each citation ourselves. Here is what we found.

Meraki Medicinal published an article titled "Methylene Blue and Testosterone: What the Science Really Says About This Performance Booster."

The article claims methylene blue produces a 15 to 24% increase in free testosterone in adult males over 12 weeks, citing a study by Chen et al. (2023). It also cites six additional studies on Leydig cell enhancement, testicular blood flow, athletic performance, and post-exercise hormonal response.

We searched each of these citations on PubMed, Google Scholar, and CrossRef. We tried every DOI.

None of them resolve. The journals named do not exist as described, and we found no publication record for the authors. These citations were not retracted or pulled from databases. They were never in any database because they were never published.

The specific claim that methylene blue produces a 15 to 24% increase in free testosterone in healthy males over 12 weeks traces entirely to the Chen et al. (2023) citation above.

That study does not exist. There is no human clinical trial in any database showing methylene blue increases testosterone in healthy men.

You can check this yourself in a couple of minutes. Search pubmed.ncbi.nlm.nih.gov for any of the author names paired with "methylene blue." You will find no results. Try the DOIs at doi.org. They do not resolve.

Impact Health (takeimpact.com) published an article titled "Methylene Blue and Testosterone: Boost Energy & Vitality."

The article repeats the same core claims: that a 2023 study of adult males found daily methylene blue supplementation produced a 15 to 24% testosterone increase over 12 weeks, and that athletes using methylene blue showed 18% higher post-exercise testosterone compared to controls.

These are the same numbers from the Meraki Medicinal article, the same fabricated Chen et al. (2023) study, the same fabricated Johnson et al. (2024) athletic performance data.

Impact Health does not cite these sources by name. The claims appear as settled fact with no attribution, so a reader has nothing to trace them back to.

We found no human clinical data in the peer-reviewed literature showing methylene blue increases baseline testosterone as of the publication of this article. That includes every claim on the Impact Health website on this topic.

We try to tie every claim we make to a published, indexed, peer-reviewed source. Not a blog post, and not a citation that leads to a dead DOI. An actual study you can find, read, and check yourself.

That rule shapes how we write these articles, how we formulate, and how we test.

Our products are made in an NSF GMP verified facility in the United States. They are third-party tested by independent labs, and the lab reports are downloadable at nutricel.store/pages/certs, no request needed.

Our methylene blue is USP grade, meaning the raw material meets the USP monograph, and it tested at 99.4% purity. That is a different standard from industrial or laboratory-grade material.

Methylene blue has enough real research behind it. It does not need invented studies. If you want to know what the evidence actually supports, every article in our Insights library links to the specific research behind it, and every link resolves.

The FDA label for methylene blue injection (Provayblue) describes methylene blue as a monoamine oxidase inhibitor and carries a boxed warning about serotonin syndrome with serotonergic drugs. Our adverse medications list goes further.

Do not take methylene blue if you are currently using:

• SSRIs, SNRIs, or MAOIs (the FDA label warns of serotonin syndrome)
• Tramadol, linezolid, bupropion, trazodone, or other serotonergic medications
• Certain migraine medications and stimulants
• St. John's Wort, 5-HTP, or SAMe

It is also not for pregnant or nursing women. And the Provayblue label warns that methylene blue can cause hemolytic anemia in people with G6PD deficiency, so they should not take it.

Review the full adverse medications list and consult your healthcare provider before starting methylene blue in any form.

Every Nutricel product uses USP-grade methylene blue and is made in an NSF GMP verified facility in the United States, and our capsules are third-party tested by independent labs. The difference between them is what goes in alongside the methylene blue.

Blue Boost is our core formula: 12mg of methylene blue per capsule with Vitamin C Ester and organic cacao. If you mainly want methylene blue itself, start here.

Blue Immune combines methylene blue with copper, NAC, grass-fed beef liver, and vitamins A, C, and E for cellular and immune function support.

Blue Shroom pairs methylene blue with six organic mushroom extracts including lion's mane, reishi, cordyceps, chaga, shiitake, and turkey tail.

Blue Renew is built around GlyNAC (glycine and N-acetyl cysteine), studied for supporting glutathione levels and brain function in aging populations.

Blue Remove combines zeolite, curcumin, and nattokinase, aimed at circulation and the body's normal inflammatory response.

Blue Liquid is USP-grade methylene blue in a dropper bottle (1%, 10mg per mL), for people who prefer liquid and want to adjust in small steps.

No, the research does not show methylene blue raising testosterone. The mitochondrial research on methylene blue is solid, and the link between mitochondria and testosterone production in Leydig cells is real.

But connecting those two facts into a claim that methylene blue increases testosterone requires a bridge that does not exist in the published research, and at least two brands have responded to that gap by fabricating the bridge entirely.

The studies cited by Meraki Medicinal and repeated by Impact Health do not exist. They were not retracted or inconclusive. They were never published.

The specific numbers being cited, a 15 to 24% free testosterone increase, an 18% post-exercise testosterone elevation, a 32% improvement in testicular blood flow, have no source we could find, and they are being used to sell a product.

If a brand's science depends on citations nobody can verify, that tells you what you need to know. Before you buy on the strength of a research claim, take two minutes to check whether the studies being cited actually exist. We link ours so you can.

Methylene Blue and Testosterone / Reproductive Systems

Methylene Blue and Mitochondrial Function

Leydig Cells, Mitochondria, and Testosterone Synthesis

Fabricated Articles Referenced in This Report

How to Verify Research Citations