Methylene Blue Gummies: What We Found When We Lab-Tested Them

We have lab-tested four methylene blue gummy products so far, and all four measured below the amount on their labels. Three contained no detectable methylene blue. The fourth contained about 65 percent of its label claim. Two gummies were also put through our water test, and both produced a light blue color instead of the deep blue expected from methylene blue. These are single-sample results on the products we bought, not a verdict on every gummy on the market, but they are the reason we suggest checking a gummy more carefully than a capsule.

• Four lab tests, four results below label. Three at 0.00 mg, one at 6.51 mg against a 10 mg claim.
• Two water tests, two light-blue results. Neither produced a deep blue.
• Look for a real lab report on the gummy itself. A report on the raw powder does not show what is in the finished gummy.

Disclosure: Nutricel sells methylene blue capsules and liquid and runs the test database cited here, so we are not a neutral party. Check our numbers against the database and against each brand's own published lab reports.

Important: The FDA label for methylene blue injection (Provayblue) warns about serotonin syndrome with serotonergic medications, including SSRIs and MAOIs. Review the full adverse medications list before use.

Our lab and water test database lists eight methylene blue gummy products as of October 9, 2026. Four have been sent to an independent lab to measure how much methylene blue is in a serving. Here is what came back. We have left the brand names out of this article; each product and its full result is listed by name in the database.

Two gummies went through the water test, where a serving is dissolved in water and the color is compared with the deep blue that methylene blue normally produces. Both turned the water light blue. One of those two is also Product 2 in the table above, so the water result and the lab result point the same way.

The other gummies in the database have not been tested yet, and they are marked that way.

We do not know why these gummies tested low, and our results cannot tell us. A lab number shows how much methylene blue was measured in the sample. It does not show what happened to the rest. A few explanations are possible, and more than one could apply.

• Little or none was added. A gummy can be colored blue with very small amounts of dye, or with other colorings, without containing a meaningful dose.
• Gummies are harder to make than capsules. A gummy is cooked, mixed with sugars and acids, and poured. Spreading a few milligrams evenly through a large batch is a harder manufacturing job than filling a capsule with measured powder.
• Other ingredients can change the molecule. Methylene blue can be converted to a colorless form by reducing agents. A paper in the Journal of Chemical Education describes this reaction with ascorbic acid, which is vitamin C, an ingredient many gummies include. A gummy where this has happened could look pale and could measure low on a test that looks for methylene blue itself.

That last point cuts both ways, and it is fair to say so. If a gummy holds methylene blue in its colorless form, a standard test for methylene blue may undercount it. A brand in that position can settle the question by publishing a lab report that measures its finished gummy.

These numbers are easy to overread, so here is what they do not show.

• They are single samples. One unit of each product, from one lot. Another lot could measure differently.
• They are not every gummy. Four products have been lab-tested. Others in the database have not been tested at all.
• They do not prove intent. A low result shows what was in the sample, not why.
• They are our tests. We commissioned them and we sell a competing product. Any brand listed is free to publish its own results.

Setting test results aside, the three common forms differ in ways that matter for anyone taking methylene blue regularly.

We cover the forms in more detail in Powder vs Liquid vs Capsules and Capsules vs Liquid.

If you prefer a gummy, these checks take a couple of minutes.

1. Find the amount per gummy. The label should state milligrams of methylene blue per gummy, not just per serving of several.
2. Look for a lab report on the finished gummy. It should name an independent lab and show a measured amount. Our guide to reading a supplement lab report shows what to look for.
3. Check the grade. Look for USP grade methylene blue on the label or product page.
4. Check the seller. Our where to buy guide explains how to tell a brand from a look-alike storefront.
5. Search the product by name. The database shows whether it has been tested and what the result was.

Nutricel does not make a gummy. Our methylene blue products are capsules and a 1% liquid, and the third-party lab reports we publish are on our lab tests page.

Do not take methylene blue if you are currently using:

• SSRIs or MAOIs (the FDA label warns of serotonin syndrome)
• Any other serotonergic medication
• If you are pregnant, nursing, or have G6PD deficiency, speak with your healthcare provider first

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

Every Nutricel formula uses the same methylene blue. Third-party lab reports are on our lab tests page. Whether methylene blue fits you at all is a question for your healthcare provider.

If you and your provider decide it does, this is how our products differ:

Blue Boost is our core formula: 12mg of methylene blue per capsule.

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

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) alongside methylene blue.

Blue Remove combines zeolite, curcumin, and nattokinase with methylene blue.

Blue Liquid delivers USP-grade methylene blue in a dropper bottle for liquid format.

Every methylene blue gummy we have lab-tested so far has come in under its label, three of them at zero. That is a small sample, and it does not mean a good gummy cannot be made. It does mean a gummy deserves a closer look than its packaging suggests.

If you want a gummy, look for one with a published lab report on the finished product, and check it in the database before you buy.

Test Data and Chemistry

Supplement Regulation

Further Reading

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. Every figure in this piece is tied to the studies listed in the references, and you should always speak with your healthcare provider before starting any supplement.