Quick answer: Thinbi methylene blue was sold as Ultimate Methylene Blue 1%, a liquid with 10 mg in each 1 mL (20 drop) serving and 60 servings for about $29.97. On October 16, 2026, Thinbi’s own store listed six products and none of them was methylene blue. NooBlue makes the gummies we recommend first: 10 mg per gummy, no blue mouth, $49.99 for 60, in stock.
Six products, zero methylene blue. That is what Thinbi’s own store showed when we read its live catalog on October 16, 2026, even though Thinbi methylene blue still tops Google through an iHerb listing and a string of marketplace pages. If you liked the idea of Thinbi’s drops, or saw them recommended, this page sets out what the product was, what it would cost per dose, and where to get the same compound today.
NooBlue sells methylene blue, so we have a stake in this comparison. Every Thinbi figure below comes from a page we opened this month, and we link each one. For the wider field, our ranked guide to methylene blue brands covers the main names side by side. Written by the NooBlue editorial team. Published October 16, 2026. Last updated October 16, 2026.
Is Thinbi methylene blue still sold?
Not by Thinbi, as far as its own store shows. The address thinbi.com now forwards to thinbibrand.com, and that store’s public catalog lists six products, among them NMN+, Magnesium Glycinate, NAD+ Capsules, Berberine and Shilajit+. There is no methylene blue product, drop, capsule or gummy in it. We also found no Thinbi gummy when we last checked the field for our methylene blue gummies comparison, so that format never seems to have reached shelves.
Third-party pages still carry the liquid. iHerb’s listing appears first on Google as Thinbi Ultimate Methylene Blue 1%, 2 fl oz (59.2 ml), and the supplement database SuppCo keeps a product record for it. Marketplace sellers on Amazon, Walmart and Mercari show up below that. When a brand stops listing a product, these copies are usually old stock, so check the expiry date and the seller before you buy.
Why did it disappear? Thinbi has not said on its site. A LinkedIn post by an Amazon seller consultant, published about a year ago, reports that Amazon suspended Thinbi’s methylene blue listing over how the product was classified. We could not confirm that from Thinbi itself, so treat it as one person’s account rather than an official statement.
Thinbi methylene blue label: dose, drops and ingredients
SuppCo’s record for Thinbi Ultimate Methylene Blue 1% lists a serving of 1 mL, which it equates to 20 drops, with 60 servings per container. Each serving holds 10 mg of methylene blue, and the only other ingredient shown is deionized water. The suggested use reads: shake well, then add up to 20 drops to water, juice or tea.
Those numbers make the drop math easy. A 1% solution holds 10 mg per mL, so at 20 drops per mL each drop carries about 0.5 mg. Drop size changes with the dropper and how you hold it, so the 20-drop figure is an estimate rather than a measured dose. Our guide to how many mg of methylene blue per day explains why many people start well below 10 mg.
SuppCo also notes what it could not check. The record says its team has not verified product-specific testing, and the product has no TrustScore because the database lacks enough data. We found no certificate of analysis for this product on any page we opened. That gap matters more for an old listing than a fresh one, because you cannot tie the bottle in your hand to a batch result.
Thinbi methylene blue price and cost per 10 mg
Bottle prices hide the real comparison, so we put every option on the same unit. SuppCo lists the Thinbi bottle from $29.97 for 60 servings of 10 mg, which works out to about $0.50 per 10 mg. NooBlue prices come from our live store on October 16, 2026. Prices are as of Oct 2026 and can change.
| Product (as of Oct 2026) | Format and strength | Price | Cost per 10 mg | In stock from the brand | Best for |
|---|---|---|---|---|---|
| NooBlue Methylene Blue Gummies (our pick) | Gummy, 10 mg each, 60 per pack | $49.99 | $0.83 | Yes | A set daily dose with nothing to measure and no blue mouth |
| NooBlue Methylene Blue Drops | 1% solution, 50 mL (500 mg) | $29.99 | $0.60 | Yes | Low cost per mg and fine control over the amount |
| NooBlue Methylene Blue Capsules | Capsule, 5 mg each, 60 per pack | $37.99 | $0.63 per 5 mg capsule | Yes | Starting low at 5 mg with no taste |
| Thinbi Ultimate Methylene Blue 1% | 1% solution, 60 servings of 1 mL | From $29.97 | $0.50 | No (third-party listings only) | Readers who already own a bottle and want to know the dose |
On paper the Thinbi liquid was the cheapest per milligram in this table. In practice you cannot buy it from the brand, the listings that remain are resold stock, and there is no batch certificate to check. NooBlue’s drops cost about ten cents more per 10 mg, ship from a store that has them on the shelf, and come from a brand that publishes a certificate for its raw methylene blue. NooBlue makes all three NooBlue products above; the gummies are our pick because the dose is fixed and the mouth stays clean.
Drops or a gummy: which suits you?
If Thinbi’s drops appealed to you, the choice now is between another 1% liquid and a pre-dosed format. Liquids give the finest control. You can take 2 drops or 20, and the price per milligram is low. The trade-off is staining: methylene blue drops can tint the mouth, tongue, cups and counters a deep blue.
Gummies solve the measuring and the mess. Each NooBlue gummy holds 10 mg of methylene blue and 25 mg of vitamin C, which can shift methylene blue toward its colorless form, and the gummies do not leave a blue mouth. Capsules sit in between: 5 mg each, swallowed whole, so there is no taste or staining, and the label serving is one capsule a day.
See the 1% drops · $29.99People who search for Thinbi methylene blue often compare it with other liquid brands, Healthletic among them. Our Healthletic methylene blue breakdown applies the same cost-per-10 mg test, and the Biotech Labs methylene blue review covers another 1% dropper bottle with offer pricing.
What the research on methylene blue shows
The human evidence for everyday use is early. The most cited trial, published in Radiology in 2016, gave 26 healthy adults aged 22 to 62 a single low oral dose or a placebo and scanned their brains an hour later. The methylene blue group showed stronger brain activity during attention and short-term memory tasks and gave 7% more correct answers in memory retrieval.
That is one small, single-dose study, so it cannot tell you what daily use does over months. Much of the rest of the work on mitochondrial energy comes from cell and animal research, which is a weaker kind of evidence. Methylene blue may support cellular energy production, and that is the reason most people try it, but the research has not yet shown large, lasting effects in people.
Safety research is firmer. A laboratory study on the purified human enzyme, published in the British Journal of Pharmacology in 2007, found that methylene blue is a potent inhibitor of MAO-A. That explains the risk of serotonin toxicity when it is combined with some antidepressants, and it applies to every brand, Thinbi and NooBlue alike.
Safety before you take any methylene blue
Do not take methylene blue with SSRIs, SNRIs, MAOIs or other serotonergic medicines, because of the serotonin syndrome risk. Skip it if you have G6PD deficiency, are pregnant or breastfeeding, or are under 18. If you take any prescription medicine, talk to your doctor before you start, whatever the brand.
Methylene blue can turn urine blue or green, which is expected. Drops can also stain the mouth and tongue. With an old bottle bought from a reseller, check the seal and the expiry date, and do not use a liquid that looks cloudy or has particles in it.
This article is for education and is not medical advice. Methylene blue is a potent compound, so a qualified health professional should review it against your own health history and medicines.
Frequently asked questions
What is methylene blue and does it really work?
Methylene blue is a synthetic blue compound that has been used in medicine for more than a century. As a supplement, people take low doses because it may support mitochondrial energy and focus. The best human evidence so far is a small single-dose trial, so results are promising but early.
Is methylene blue dye toxic?
Industrial dye and aquarium grades are not made for people and can contain impurities. Products sold for people should state a USP grade and a clear strength. Even then, it interacts with serotonergic medicines and is unsuitable with G6PD deficiency or in pregnancy.
What is the difference between methylene blue and new methylene blue?
They are different compounds. New methylene blue is a related dye used to stain samples in laboratories. It is not the compound sold in methylene blue supplements, so check that a label says methylene blue and nothing else.
How many mg are in 1 drop of methylene blue?
For a 1% solution like the Thinbi liquid, 1 mL holds 10 mg. At about 20 drops per mL, one drop carries roughly 0.5 mg. Droppers vary, so treat that as an estimate.
Why do I feel so good on methylene blue?
Some people report sharper focus, which fits the idea that methylene blue supports cellular energy. Expectation also plays a part, and research on how people feel over weeks of use is limited. If you feel agitated, feverish or confused, stop and get medical advice.
Is it safe to take methylene blue every day?
Many people use a low dose daily, but long-term human data are limited. Stay within the label serving and keep clear of the medicines and conditions listed in the safety section above. Our methylene blue brand and research roundup compares how other products set their daily serving.
Where do Thinbi customer comments appear?
Most customer comments sit on marketplace listings rather than on Thinbi’s site, and the brand no longer sells the product directly. SuppCo gives it no score yet because of limited data. Read reseller comments with the listing date in mind, and see our methylene blue brand and research roundup for the wider field.
Sources and the bottom line
Thinbi methylene blue was a plain 1% liquid at a fair price per milligram, but Thinbi’s store no longer sells it and no batch certificate is published. If you want a liquid, NooBlue’s 50 mL drops cost $0.60 per 10 mg and are in stock. If you would rather not measure drops, NooBlue’s 10 mg gummies are our pick. Our guide to methylene blue prices shows what a fair price looks like across formats.
- Thinbi store catalog, thinbibrand.com, read October 16, 2026.
- SuppCo product record, Thinbi Ultimate Methylene Blue 1%, read October 16, 2026.
- Malik Ebad, LinkedIn post on the Thinbi Amazon listing, linkedin.com, read October 16, 2026.
- Rodriguez P et al. Multimodal randomized functional MR imaging of the effects of methylene blue in the human brain. Radiology, 2016.
- 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.
