How to take methylene blue gummies comes down to three things: read how much methylene blue one gummy contains, take the serving on the label and no more, and check the safety list before your first one. For NooBlue gummies, the label serving is simple: chew one gummy a day. Each gummy holds 10 mg of USP-grade methylene blue and 25 mg of vitamin C, and a bottle of 60 lasts 60 days.
The rest of this guide covers the steps in order, how many gummies a day makes sense, why the dose numbers you see online disagree so badly, what the gummies are and aren’t meant to do, and what you should never combine them with.
Key Takeaways
- Take the serving printed on your label. For NooBlue that is one gummy (10 mg) a day, and the label says not to exceed it.
- Strength varies by brand (TrueHealthic lists 5 mg per gummy, NooBlue 10 mg), so read the supplement facts panel rather than the front of the pack.
- Pick a time and keep it. At least one brand warns that evening doses may affect sleep, so the morning is a sensible default.
- Don’t split a gummy or double up. If you want 5 mg, use a 5 mg capsule.
- Do not take methylene blue with SSRIs, SNRIs, MAOIs or other serotonergic medicines, with G6PD deficiency, in pregnancy or breastfeeding, or under 18.
How to Take Methylene Blue Gummies: Step by Step
- Check the safety list first. Before your first gummy, read the safety section below. If you take an SSRI, SNRI, MAOI or any other serotonergic medicine, have G6PD deficiency, are pregnant or breastfeeding, or are under 18, don’t take methylene blue. If you take any prescription medicine, talk to your doctor first.
- Read what one gummy contains. Look at the supplement facts panel, not the front label, and find two numbers: the milligrams of methylene blue per gummy and the serving size. A NooBlue gummy lists 10 mg of methylene blue and 25 mg of vitamin C, with a serving size of one gummy. TrueHealthic’s gummies, by comparison, list 5 mg per gummy. Our guide to methylene blue gummy ingredients explains the rest of the panel.
- Chew one gummy a day. That is the NooBlue label serving. Chew it fully, then swallow. There is nothing to measure.
- Pick a time and keep it. The label doesn’t set a time of day, and the morning is a sensible default. Nutricel’s safety notice for its methylene blue capsules says taking it in the evening may affect sleep. If you notice that, move it earlier. Our article on taking methylene blue in the morning or at night goes into timing.
- Decide on food. The gummy label doesn’t require food. If methylene blue unsettles your stomach, take it with a meal. In older clinical research at far higher doses, giving methylene blue with food helped with stomach upset (Lu et al., 2018).
- Don’t double up or split. Don’t take a second gummy to “boost” the effect, and don’t cut one in half. A gummy isn’t scored or designed to be split, so the halves won’t be even. If you want 5 mg, the 5 mg NooBlue capsule is made for that.
- Store the bottle properly. Keep it tightly closed in a cool, dry place away from direct heat and sunlight, as the product page directs. Check the seal and label when it arrives; our guide to what genuine methylene blue packaging looks like covers what to look for.
If you are still choosing a brand, our comparison of the best methylene blue gummies lines up doses, sugar and lab reports, and NooBlue vs TrueHealthic compares the two side by side.
How Many Methylene Blue Gummies Per Day?
One, if you are using NooBlue gummies. The label serving is one gummy a day, and it says not to exceed the suggested serving. If you use another brand, follow its label, because a “serving” can mean a different number of gummies and a different number of milligrams.
NooBlue makes methylene blue in three formats, and each one is dosed in a different unit, which is where comparisons get confusing. Here they are side by side, per serving:
| Format | Methylene blue per serving | Price (as of Sep 2026) | Cost per serving | Suits |
|---|---|---|---|---|
| Gummies, 60 per bottle | 10 mg, plus 25 mg vitamin C, in 1 gummy | $49.99 | $0.83 | A no-measuring daily routine with no blue mouth |
| Capsules, 60 per bottle | 5 mg, plus 10 mg vitamin C, in 1 capsule | $37.99 | $0.63 | Starting low, or a neutral capsule you swallow with food |
| 1% drops, 50 mL | 0.5 mg per drop, so 5 mg is 10 drops | $29.99 | $0.30 at 5 mg | Adjusting the amount in half-milligram steps |
A 10 mg gummy equals 20 drops of NooBlue’s 1% solution, which is one full dropper. The drops cost the least per serving, but you have to measure them and they can tint your mouth. The gummy removes the measuring. For the full format comparisons, see methylene blue gummies vs capsules, gummies vs liquid drops, capsules vs liquid and how to take methylene blue drops.
Why Methylene Blue Dose Numbers Online Don’t Agree
Search for a methylene blue dose and you will see numbers that seem impossible to reconcile. They disagree because they answer different questions.
Hospital doses are a different thing. In hospitals, methylene blue is given into a vein at 1 mg per kg of body weight over 5 to 30 minutes for a specific blood emergency (Ostrovsky and Afzal, StatPearls). For a 70 kg adult that works out to 70 mg in one go, given by clinicians. It has nothing to do with a daily supplement serving and is not a guide to one.
More is not better. A 2012 review of methylene blue’s effects on the brain described a hormetic dose-response, meaning low and high doses produce opposite effects. At low doses, it acts as an electron cycler in the mitochondrial electron transport chain (Rojas et al., 2012). That is one more reason to stay at the label serving instead of stacking gummies.
Supplement servings are small and fixed. NooBlue’s servings are 5 mg per capsule, 10 mg per gummy, or a measured number of drops. A fixed-dose gummy spares you from picking a number off the internet. The trade-off is that you can’t go below one gummy, which is why the capsule is the better place to start if you want 5 mg. Our guide to how many mg of methylene blue per day treats format and dose as one decision.
What Are Methylene Blue Gummies Supposed to Do?
Methylene blue can accept and donate electrons, and at low doses it can cycle within the mitochondrial electron transport chain. NooBlue positions its gummies to support mitochondrial energy and focus. Most of the research behind that is in cells and animals, with a handful of small human studies of oral methylene blue. None of it tested a finished gummy, and the NooBlue product page says so. Our evidence audit of methylene blue gummy benefits separates what is established from what isn’t, and what methylene blue gummies are is the plain-English starting point if you are new.
Two practical points about NooBlue’s gummies. First, they contain vitamin C, which can shift methylene blue toward its colorless reduced form, leucomethylene blue. NooBlue’s published ingredient report does not measure how much of the methylene blue is in that form in the finished gummy. Second, and separately, the gummies don’t leave the blue mouth or blue tongue that liquid drops can. Your urine may still turn blue or green, which is expected with any form of methylene blue.
On testing: NooBlue publishes a report from Contract Testing Laboratories of America (CTLA) on its methylene blue ingredient lot, covering identity and heavy metals. It is ingredient-level evidence. It does not give a purity percentage or certify every finished batch.
What Not to Take With Methylene Blue Gummies
At supplement servings, the interaction is usually a bigger risk than the amount.
- Serotonergic medicines. Do not take methylene blue if you take an SSRI, SNRI, MAOI or any other serotonergic medicine, including many antidepressants. Methylene blue is a potent reversible inhibitor of monoamine oxidase A, which accounts for the serotonin toxicity reported when it is combined with SSRIs (Ramsay et al., 2007). Clinical references also say to avoid combining it with serotonergic agents and opioids. Our article on methylene blue and serotonin syndrome explains the mechanism.
- G6PD deficiency. Methylene blue is contraindicated in G6PD deficiency because of the risk of hemolysis (Ostrovsky and Afzal, StatPearls). See methylene blue and G6PD deficiency.
- Pregnancy and breastfeeding. Not for use during either.
- Anyone under 18. Not for use.
- Other medicines. Talk to your doctor before use if you take any prescription medicine or have a kidney or liver condition. Some brands’ labels also flag common allergy medicines such as diphenhydramine (Benadryl), so ask your pharmacist about over-the-counter medicines too.
The fuller list, including combinations that are unhelpful rather than unsafe, is in what not to take with methylene blue, and who should not take methylene blue covers the people for whom it isn’t suitable. Coffee is a common question: our notes on methylene blue and caffeine cover how the two feel together. If you stack longevity supplements, taking NMN and methylene blue together answers the most common question we get, and methylene blue gummy side effects lists what to watch for. This article is general information, not medical advice.
Frequently Asked Questions
How do you take methylene blue gummies for the first time?
Check the safety list first, then chew one gummy at a time of day you can repeat, ideally on a day with nothing critical planned so you can notice how you feel. Don’t take two on day one. If you would rather start at 5 mg, use a 5 mg capsule instead of cutting a gummy.
Are you supposed to take methylene blue gummies every day?
NooBlue’s label says to chew one gummy daily, and a bottle of 60 is a 60-day supply. Daily use only makes sense if none of the safety rules apply to you: not with serotonergic medicines, not with G6PD deficiency, not in pregnancy or breastfeeding, and not under 18. Our guide on whether methylene blue is safe to take daily goes further.
Should you take methylene blue gummies with food?
The NooBlue gummy label doesn’t require food. If methylene blue unsettles your stomach, taking it with a meal is an easy fix. NooBlue’s capsules, by contrast, are labeled to be taken with food.
Can I take two methylene blue gummies a day?
Not with NooBlue gummies. The label serving is one gummy a day, and it says not to exceed the suggested serving. With low and high doses of methylene blue producing opposite effects, more is not better.
How many drops of methylene blue equal one 10 mg gummy?
With NooBlue’s 1% drops, one drop is 0.5 mg, so 10 mg is 20 drops, or one full dropper. Other brands’ droppers and concentrations differ, so check their label before converting.
Will methylene blue gummies turn my tongue blue?
NooBlue gummies don’t leave a blue mouth or blue tongue. Liquid drops can, and our guide to methylene blue and tooth staining covers that. Urine can turn blue or green with any form of methylene blue, which is expected; see methylene blue and urine color.
What should you not mix with methylene blue?
Do not combine it with SSRIs, SNRIs, MAOIs or any other serotonergic medicine, including many antidepressants, because methylene blue inhibits monoamine oxidase A and the combination can cause serotonin syndrome. Do not take it with G6PD deficiency, in pregnancy or breastfeeding, or under 18. Ask your doctor or pharmacist about any other prescription or over-the-counter medicine before you start.
What if I miss a day?
Take your next gummy at your usual time. Don’t take two the next day to make up for it, because the label serving is one gummy a day and it says not to exceed it.
How long does one bottle of methylene blue gummies last?
A NooBlue bottle holds 60 gummies, so at one a day it lasts 60 days. If you plan to keep going, the product page shows multi-bottle prices: 10% off for 2 bottles, 15% off for 3 and 20% off for 5.
Which form of methylene blue is best?
It depends on how you want to take it. NooBlue gummies are the easiest daily routine: 10 mg, no measuring and no blue mouth. The 5 mg capsule suits you if you want to start low or prefer a neutral capsule with food. The 1% drops suit you if you want to adjust in half-milligram steps and don’t mind measuring. You can compare all three in the NooBlue shop.
Sources
- Ostrovsky A, Afzal M. Methylene Blue. StatPearls, NCBI Bookshelf. NBK557593
- Ramsay RR, Dunford C, Gillman PK. Methylene blue and serotonin toxicity: inhibition of monoamine oxidase A (MAO A) confirms a theoretical prediction. British Journal of Pharmacology, 2007. PubMed 17721552
- Rojas JC, Bruchey AK, Gonzalez-Lima F. Neurometabolic mechanisms for memory enhancement and neuroprotection of methylene blue. Progress in Neurobiology, 2012. PubMed 22067440
- Lu G, Nagbanshi M, Goldau N, et al. BMC Medicine, 2018 (systematic review of methylene blue efficacy and safety studies). PubMed 29690878
- Nutricel, Blue Boost product page (safety notice). nutricel.store
- TrueHealthic, Methylene Blue Gummies product page. truehealthic.com
