K Tropix Wellness Methylene Blue + Vitamin C is a liquid supplement made with USP-grade methylene blue and vitamin C, sold with the full lab report for every batch. Methylene blue isn't right for everyone, so please read the safety information below before you buy.
Important safety information
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Do not use if you take antidepressants (SSRIs, SNRIs, MAOIs and others) or any other medication that affects serotonin. Methylene blue combined with these medications can cause serotonin syndrome, a serious reaction.
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Do not use if you have G6PD deficiency.
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Do not use if you are pregnant or breastfeeding, or if you are under 18.
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If you take any prescription medication or have kidney or liver disease, talk to your doctor or pharmacist before use.
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Methylene blue commonly turns urine blue or green. This is expected and temporary.
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Do not exceed the serving size on the label.
Lab results for batch D25MBZF12
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Purity: 97.63% methylene blue by HPLC (high-performance liquid chromatography)
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Heavy metals: lead, mercury, arsenic and cadmium not detected by ICP-MS (limit of detection 0.002 mcg/g)
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Microbial: E. coli and Salmonella absent
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Standard: tested against USP <232> limits for elemental impurities
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Laboratory: [lab name], an independent ISO 9001:2015 certified laboratory
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Expiration: November 2027
Supplement facts and directions
Directions: Mix drops into a glass of water to reduce staining of the mouth and teeth.
What the research says
Interest in methylene blue as a supplement comes mostly from research on mitochondria, the parts of cells that produce energy.* Much of that research is in laboratory and animal studies, with a smaller number of human studies. Evidence in healthy adults taking methylene blue as a daily supplement is still limited. We share what the research shows and what it doesn't, and we don't claim more than the evidence supports.
Why buy methylene blue from K Tropix Wellness
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USP-grade methylene blue
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A published, batch-specific lab report with purity, heavy metal and microbial results
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Clear dosing and safety information, reviewed by a pharmacist
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UV-protected glass bottle
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Ships from Boise, Idaho within 48 hours
Who it isn't for
Anyone taking antidepressants or other medications that affect serotonin, anyone with G6PD deficiency, anyone pregnant or breastfeeding, and anyone under 18.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Frequently Asked Questions
Who should not take methylene blue?
Do not take methylene blue if you use antidepressants (SSRIs, SNRIs, MAOIs and others) or any other medication that affects serotonin, because the combination can cause serotonin syndrome, a serious reaction. Do not use it if you have G6PD deficiency, are pregnant or breastfeeding, or are under 18. If you take any prescription medication or have kidney or liver disease, talk to your doctor or pharmacist first.
What does 97.63% purity mean?
It means independent lab testing by HPLC (high-performance liquid chromatography) found the methylene blue in the current batch, D25MBZF12, to be 97.63% pure. The same report found no detectable lead, mercury, arsenic or cadmium, and no E. coli or Salmonella.
What does USP grade mean?
USP grade means the ingredient meets the quality standards published by the United States Pharmacopeia. Our testing follows USP <232> limits for heavy metals and other elemental impurities.
Will methylene blue change the color of my urine?
Yes. Methylene blue commonly turns urine blue or green. This is expected and temporary. Drops can also briefly stain the mouth and teeth, so mix them into water.
Why is vitamin C included?
Vitamin C is commonly paired with methylene blue because the two interact chemically; vitamin C can convert methylene blue to its reduced form. Each serving also provides vitamin C as listed in the Supplement Facts.
Where is the lab report?
The Certificate of Analysis for batch D25MBZF12 (expires November 2027) is linked on this page and on the K Tropix Wellness Lab Results page.