What Is Blue Liquid? Nutricel's Methylene Blue 1% Solution

Blue Liquid is our methylene blue in liquid form: a USP-grade 1% solution (10 mg per mL) in an extra-large 4 oz (120 mL) bottle with a dropper. It is the same USP-grade methylene blue that goes in our capsules, in a format you measure yourself.

• 1% solution, 10 mg per mL. A 4 oz (120 mL) bottle with a precision dropper, roughly 120 servings depending on the amount you use.
• Just two ingredients. USP-grade methylene blue and purified water. No alcohol, formaldehyde, artificial dyes, or synthetic fillers.
• Flexible dosing you control. Measure with the dropper to the amount your healthcare provider recommends. Note: liquid methylene blue stains fabric, skin, and surfaces.

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.

Blue Liquid is methylene blue you measure yourself, and that control is why people choose it. A 1% solution means there are 10 mg of methylene blue in every milliliter, and with the dropper you can move the amount up or down in small steps instead of being tied to one capsule strength. People who like to start very low and adjust slowly tend to prefer it.

The formula is USP-grade methylene blue and purified water, and nothing else. No alcohol, no formaldehyde, no artificial dyes, and no fillers or stabilizers. USP grade means the methylene blue meets the United States Pharmacopeia standard, the same material we use in our capsules. That matters because plenty of methylene blue on the market is industrial or aquarium grade, which is not made for people to take.

Methylene blue is a redox-active molecule, meaning it can both give and take electrons. Published research by Tucker and colleagues (Molecular Neurobiology, 2018) describes it acting inside mitochondria as an alternative electron carrier that supports ATP production, the cell's energy currency, and further work by Wen and colleagues (2011) looked at that same role. For choosing a format, the point is simple: it is the same molecule in a liquid or a capsule. The liquid only changes how you take it and how finely you can measure it.

Because Blue Liquid is a 1% solution, the math is simple: every 1 mL holds 10 mg of methylene blue. The table below shows how common dropper amounts translate into milligrams. It is a reference for how the concentration works, not a dosing recommendation.

Many people add their measured amount to a glass of water and drink it. Methylene blue is intensely colored, so even a small amount turns water deep blue. That is normal and expected.

Both formats use the same USP-grade methylene blue, so the choice comes down to how you want to take it. Liquid lets you measure down to a fraction of a milligram. A capsule gives you a fixed, measured amount with no measuring, taste, or cleanup. We sell both, and the table below lays them side by side.

Choose Blue Liquid if you want to fine-tune your dose, prefer to start low and adjust in small increments, or like the flexibility of a dropper. A single 4 oz bottle lasts a long time because each serving is only a fraction of a milliliter.

Choose a capsule such as Blue Boost if you want a fixed, pre-measured dose with no measuring, no taste, and no risk of staining. For a deeper comparison, see our guide on methylene blue capsules vs liquid.

Liquid methylene blue stains, and it is better to plan for that than to find out on a white shirt. It is a strong dye, which is why a fraction of a milliliter turns a full glass of water deep blue. It will color fabric, skin, countertops, and most porous surfaces on contact, and once it sets it is hard to get out.

A few simple habits help: measure over a sink, add the dropper amount directly to a glass of water rather than your mouth, wipe spills immediately, and keep the bottle away from light-colored surfaces. If staining is a dealbreaker for you, a capsule format avoids it entirely.

Methylene blue is not for everyone, and this is the part to read before you buy. The FDA label for methylene blue injection (Provayblue) carries a boxed warning about serotonin syndrome when it is combined with serotonergic drugs, and our adverse medications list covers more.

Do not take Blue Liquid 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
• Certain migraine medications, stimulants, or opioids
• Some common allergy and cold medications
• St. John's Wort, 5-HTP, or SAMe

It is also not for pregnant or nursing women or for children. The Provayblue label warns that methylene blue can cause hemolytic anemia in people with G6PD deficiency, so they should not take it. With a liquid, you are the one measuring, so measure the same way every time. Some people find it harder to sleep if they take it late in the evening.

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

Every Nutricel product uses USP-grade methylene blue and is made in an NSF GMP verified facility in the United States, and our capsules are third-party tested by independent labs. The difference between them is the format and what goes in alongside the methylene blue.

Blue Liquid delivers USP-grade methylene blue as a 1% solution in a dropper bottle for those who want flexible, self-measured dosing.

Blue Boost is our core capsule: 12 mg of methylene blue with Vitamin C Ester and organic cacao. If you want a measured capsule instead of a dropper, start here.

Blue Immune combines methylene blue with copper, magnesium, NAC, grass-fed beef liver, and camu camu for fatigue and cellular energy support, based on the Root Cause Protocol.

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 with collagen and creatine, aimed at longevity and brain function as you age.

Blue Remove combines zeolite, curcumin, and nattokinase, aimed at circulation and the body's normal inflammatory response.

Blue Liquid is the flexible, self-measured way to take our USP-grade methylene blue. You give up the convenience of a capsule and get full control over the amount.

• A USP-grade 1% solution: 10 mg of methylene blue per mL
• An extra-large 4 oz (120 mL) bottle with a precision dropper, roughly 120 servings
• Only two ingredients: USP-grade methylene blue and purified water
• Full dose control, ideal for starting low and adjusting in small increments
• One trade-off to plan for: liquid methylene blue stains fabric, skin, and surfaces

Methylene Blue and Mitochondrial Function

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.