Nutricel vs NooBlue: An Honest Methylene Blue Comparison

NooBlue is ranked the number one methylene blue supplement across many 2026 lists, but many of those lists are published by NooBlue itself. On the things a buyer can check, we think Nutricel Blue Boost leads: more than double the methylene blue per capsule, more Vitamin C, downloadable third-party lab reports, and US manufacturing. We make Blue Boost, so read this as our case, with the numbers shown. NooBlue is a real, legitimate brand, and this is about which product gives you more, not about whether NooBlue is genuine.

• Dose. Blue Boost is 12 mg of methylene blue per capsule; NooBlue is 5 mg, less than half.
• Value. About 4.8 cents per mg of methylene blue with Nutricel versus about 12.7 cents per mg with NooBlue.
• Transparency. Both publish a directly viewable lab report; ours is a downloadable PDF from an ISO/IEC 17025-accredited lab, NooBlue's is a CTLA certificate image.
• Origin. Blue Boost is made in an NSF GMP verified US facility; NooBlue does not publish a manufacturing location or FDA registration status on its own site.

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 use.

Search for the best methylene blue supplement and NooBlue tends to sit at the top of the results. For a lot of shoppers, that top spot does the deciding for them. But a search ranking is not a verdict. It is a measure of visibility, and visibility can be bought, built, or, in this case, self-published.

Many of the articles ranking NooBlue first are published on NooBlue's own website and written by NooBlue. A brand ranking itself first is marketing, not an independent review, and it tells you nothing about how the product compares once you put the two bottles side by side. That does not make NooBlue a bad product. It publishes a lab report and makes specific purity claims, which already puts it ahead of the many anonymous sellers that fail independent testing outright. It means the number one label is where to start reading, not where to stop.

So we lined the two brands up on the things a buyer can check and showed the numbers. We sell one of them, which is why the numbers are here for you to check. Here is the short version before we get into the detail.

The rest of this comparison walks through each of those rows so you can see the reasoning, not just the result.

Nutricel Blue Boost delivers 12 mg of USP-grade methylene blue per capsule. NooBlue delivers 5 mg, less than half the active compound, at a higher price per capsule. Neither number is wrong on its own, but they are not interchangeable, and a ranking that lists the two side by side without mentioning the gap is quietly comparing two different things.

Dose matters in two ways. First, it changes what you are taking. Supplement servings of methylene blue sit in the low-milligram range, and many people begin at the bottom of that range and build up as they learn how they respond. A 5 mg capsule is a reasonable entry point, but if your target is closer to 10 or 12 mg, you would need to take two NooBlue capsules to match a single Blue Boost. That doubles your cost and your capsule count to reach the same place. Second, dose changes how you judge whether methylene blue is doing anything for you at all. If you are evaluating the compound for the first time and you happen to be taking a low-dose product, it is easy to conclude that methylene blue does nothing, when in reality you were testing a fraction of a typical serving.

This is where shelf comparisons mislead. Two bottles can cost about the same while one holds less than half the active ingredient. The bottle costs look similar, the capsule counts look similar, and only the milligram figure on the back of the label tells the real story. The most useful habit when comparing methylene blue products is to skip the front of the bottle and read the per-capsule dose on the back.

Some comparison pages argue that a smaller capsule is the more scientifically correct choice, pointing to a 2012 review in Progress in Neurobiology that describes methylene blue as having a hormetic, biphasic dose-response: beneficial mitochondrial and antioxidant effects at low doses, with that benefit reversing at high doses (Rojas et al., 2012). That is real, peer-reviewed research, and it is the best argument against taking more milligrams for their own sake.

The question is what "low dose" means in that research. In that line of work, low oral doses run up to roughly 0.5 to 1 mg per kilogram of body weight, which works out to about 35 to 70 mg a day for an average adult. A 5 mg capsule and a 12 mg capsule are both far inside that low-dose range; neither one is close to the territory where the same research describes the benefit reversing. A 5 mg capsule is not more "hormetically correct" than a 12 mg capsule. Both sit on the low side of the curve described in the paper being cited.

Where the argument does hold up is titration: the ability to start smaller and build up. That is a fair point, and it is why Blue Boost Liquid exists in the Nutricel lineup: a dropper format that lets you measure any dose smaller than a full 12 mg capsule for anyone who wants to enter the low-dose range gradually before settling on a routine.

Both products include Vitamin C, so the ingredient lists look similar at a glance. They differ in form and in amount, and of the two, the amount is the difference we can stand behind most firmly.

Blue Boost uses Vitamin C Ester at 35 mg, a fat-soluble form (ascorbyl palmitate). We chose it because vitamin C reduces methylene blue to its leucomethylene blue form, the state researchers link to its role as an electron carrier, and a fat-soluble form can sit in lipid membranes in the lab. The Linus Pauling Institute notes, though, that most oral ascorbyl palmitate is broken down into ordinary vitamin C during digestion, so we do not claim it reaches mitochondria intact.

NooBlue uses standard ascorbic acid at 10 mg. Ascorbic acid is the everyday, water-soluble form of Vitamin C. It is perfectly good Vitamin C, and here it is included at under a third of the amount. So the clearest difference is quantity: 35 mg versus 10 mg.

Adding Vitamin C is not wrong, and both brands are right to include it. We just put in more, and we picked the form on purpose.

No publicly available head-to-head human trial has directly compared absorption between a fat-soluble ester and ascorbic acid inside a swallowed methylene blue capsule specifically, and any brand claiming otherwise would be overstating the evidence. Our case for Vitamin C Ester rests on lab chemistry, not a product-specific trial, and it should be read that way.

A fair comparison has to give credit where it is due, and NooBlue earns some. It is a real company with a real product, and in a category crowded with anonymous sellers, that alone matters. In our own lab and water test database, we have found methylene blue products, especially cheap marketplace ones, that contain far less active ingredient than the label claims, and some with none at all. NooBlue is not one of those. It publishes a lab report, states a clear per-capsule dose, and makes specific purity claims it is willing to stand behind.

Its 5 mg dose is also genuinely reasonable as a starting point. If you are brand new to methylene blue and want to begin conservatively, a lower per-capsule dose gives you a gentle on-ramp, and there is nothing wrong with that approach. Plenty of thoughtful users prefer to start low regardless of brand.

So we are not saying NooBlue is a scam or dangerous. We are saying that on the things you can measure, Blue Boost offers more: a higher dose, more Vitamin C, lab reports you can download without asking, and manufacturing in a US facility under third-party audit. NooBlue clears the basic bar that a lot of the market fails. Nutricel clears a higher one.

What a lab report should let you do

A lab report is the lab document that reports what a product actually contains: its measured purity, its active ingredient content, and its screening for contaminants such as heavy metals and microbes. The most important thing about a lab report is that you can open it. A certificate you cannot see is not doing its job.

NooBlue links a viewable lab report image directly from its product page, tested by CTLA (Contract Testing Laboratories of America). It is directly accessible, not something you need to request. We publish downloadable lab report PDFs at nutricel.store/pages/certs, also with no request, form, or email required. The real difference is scope and format. Ours come from independent ISO/IEC 17025-accredited labs as downloadable PDFs, with heavy metals measured down to parts per billion and full microbial panels, while NooBlue's certificate is a single testing-lab image. Both let you check without contacting anyone, but ours carry more detail and are easier to save and print.

Worth noting: NooBlue's own capsule product page now describes that certificate as ingredient-level evidence that "does not establish a numerical purity percentage, finished-product potency or certification of every batch," and the report itself covers only a methylene blue identity check by HPLC plus four heavy metals, with no microbial panel. Our finished-product lab report covers methylene blue potency, heavy metals, and microbials together on the same report.

Manufacturing and oversight

NooBlue's own site lists a business address in Sheridan, Wyoming, USA, and does not state where the product is actually manufactured or whether that facility carries FDA registration. Without a disclosed manufacturing location or registration status, a buyer has no way to confirm what regulatory framework, if any, governs production.

Our products are made in an NSF GMP verified US facility. NSF GMP verification is a third-party audit of the facility itself, separate from product testing: the equipment, processes, and quality controls are checked against written standards. Between that audit and the downloadable lab reports, the point is that you can check for yourself before you spend a dollar.

Sticker price is the wrong way to compare methylene blue, because two bottles can cost almost the same while delivering very different amounts of the only ingredient you are actually paying for. The fair measure is cost per milligram of methylene blue, and on that the gap is large.

NooBlue works out to roughly 12.7 cents per milligram of methylene blue. Nutricel Blue Boost works out to roughly 4.8 cents per milligram. That makes Nutricel more than 2.6 times more cost-efficient on the active compound. The bottle prices may look close on a product page, but you are not buying bottles, you are buying milligrams, and the per-milligram math is where the difference lives.

The difference adds up. Once you settle into a routine, you are buying the same product month after month. A gap of a few cents per milligram is easy to shrug off on a single bottle, but across a year of regular use it is the difference between one budget and a noticeably larger one, for the same amount of methylene blue. When you factor in that a 12 mg capsule may replace two or three 5 mg capsules to reach the same serving, the effective gap widens further.

Value is not only price. It also includes what comes with the methylene blue: the extra Vitamin C, the downloadable lab reports, and the US manufacturing. But even on price alone, narrowly defined as cost per milligram, Nutricel is the more efficient buy.

NooBlue ranks at the top of most best methylene blue results largely because many of those articles are hosted on its own domain and authored by NooBlue itself. When a brand hosts and writes the article that ranks it first, that article is advertising with the format of a review. It is designed to look like an independent conclusion, and it reliably reaches the top of the page, but it was never an outside evaluation to begin with.

This is not unique to NooBlue, and it is not against any rule. Plenty of brands publish their own comparison content. The point is only that you should weight it accordingly. A ranking measures visibility, which reflects marketing effort and search strategy. It does not measure dose, purity, testing access, or manufacturing, which are the things that actually determine what you get.

For an outside view, ConsumerHealthDigest listed Nutricel as a top USP methylene blue capsule in its 2026 roundup, and we did not write that one. And for a wider view across many more brands, including the ones that failed testing outright, see our full methylene blue brands comparison.

You do not have to take any brand's ranking on faith, including ours. Three checks put the decision back in your hands, and they work on any methylene blue product, not just these two.

1. Read the per-capsule dose, not the front of the bottle. The milligrams of methylene blue per capsule is the number that determines value and effect. Two products at similar prices can differ two- or three-fold on this figure, so it is the first thing to compare.

2. Look for a published lab report. Confirm it names the testing lab and shows measured results. A brand that makes the document easy to find is showing its work. If a report is generic or only available after you email someone, treat the claim as unverified.

3. Run the water test at home. Dissolve one capsule in a clear glass of water. Genuine methylene blue produces a deep, transparent blue with no haze or sediment. This will not tell you the exact milligrams, but it is a simple screening tool you can run on any brand, including whichever one you choose. For reference, Nutricel Blue Boost carries a 12 mg label claim, and its methylene blue content is confirmed by a published third-party lab report on our lab reports page.

For most people we would pick Blue Boost, and here is the plain version of why, with the case for NooBlue too.

Choose Nutricel Blue Boost if you want the most methylene blue per capsule, the lowest cost per milligram, a Vitamin C form matched to how methylene blue works, and testing you can download and check yourself before you buy. We think it is the right pick for most people, especially once you have a routine and are buying the same product again and again. If you want to start smaller than 12 mg, Blue Liquid lets you measure a smaller amount with a dropper.

Consider NooBlue if you specifically want a fixed 5 mg per-capsule dose. It is a legitimate product, and for a cautious first-timer who wants a low fixed dose, it is a defensible choice. For most buyers weighing dose, value, and cost-per-milligram together, though, Nutricel comes out ahead on every one of those lines.

Read this part whichever brand you choose. The FDA label for methylene blue injection (Provayblue) carries a boxed warning about serotonin syndrome when it is combined with serotonergic drugs, and that does not change with brand. It is the one part of this decision where caution matters more than value.

Do not take methylene blue if you are currently using:

• SSRIs or MAOIs (the FDA label warns of serotonin syndrome)
• SNRIs or other serotonergic medications such as tramadol, trazodone, or bupropion
• Blood pressure medications
• 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.

NooBlue is a real, legitimate brand that clears a bar most of the market fails. But a number one ranking that a brand largely wrote for itself is a reason to compare the details rather than assume, and on the details, Nutricel Blue Boost leads.

• Dose: Blue Boost 12 mg vs NooBlue 5 mg, more than double per capsule.
• Value: about 4.8 cents per mg vs about 12.7 cents per mg of methylene blue.
• Vitamin C: Ester 35 mg vs ascorbic acid 10 mg.
• Transparency: downloadable lab report PDF vs a linked CTLA certificate image, both directly viewable.
• Origin: NSF GMP verified US facility vs a brand that does not disclose its manufacturing location or FDA registration status.

Sam Carlson, Marketing Developer at Nutricel

Sam is a marketing developer at Nutricel who writes the Nutricel Insights series to help our customers understand methylene blue and make informed choices, translating the published research into plain language. Sam is not a medical professional, and these articles are intended as education rather than medical advice. Comparative claims in this article reflect each brand's published product information and Nutricel's own third-party testing, and you should always speak with your healthcare provider before starting any supplement.