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Pharmaceutical-grade checklist

Interactive checklist for evaluating whether a methylene blue product even claims drug-grade quality. It scores what a seller can document, not what this site cannot verify.

No tool on this site converts, plans, or optimizes a wellness dose. The dose visualizer exists to show the narrow distance between studied doses and the label's documented harm thresholds; the screener exists because the worst documented outcomes were interaction cases; the checklist exists because the material sold online spans a licensed pharmacy to a fish-tank bottle.

Worked example

All six checks pass. The product documents drug-grade quality claims. That still does not make it approved, dosed, or safe for you; run the interaction screener.

Any check fails. Quality cannot be verified. The honest default for unverifiable material is not to swallow it.

Pharmaceutical-grade checklist

#	Check	Why it matters	What a pass looks like	Source
G1	Is the material designated USP grade?	USP is the public drug-purity standard; the approved injection is 'methylene blue injection, USP' and the one randomized human cognition trial used USP-grade material.	Seller states USP grade and can document it	source
G2	Is there a certificate of analysis with an azure B limit?	Azure B is the documented impurity of methylene blue (and also its human metabolite); a real CoA quantifies it.	Batch-specific CoA including azure B and identity assay	source
G3	Is it dispensed by a licensed pharmacy for human use?	Licensed-pharmacy compounding is how the human trial sourced USP-grade material; aquarium and 'lab use' products are outside human-use accountability entirely.	Licensed pharmacy, human-use labeling, prescriber involved	source
G4	Does the label disclose concentration in mg per drop or mg per mL?	Dose errors are how people cross the label's 3 mg/kg harm line; a product without exact concentration cannot be dosed deliberately.	Exact concentration stated; dropper calibrated	source
G5	Is it protected from light and within date?	The approved product requires light protection and controlled room temperature; the dye is light-sensitive.	Opaque or amber packaging, storage guidance, lot and expiry printed	source
G6	Does the seller avoid medical claims?	Oral nootropic methylene blue is not an FDA-approved product or use; sellers making disease claims are advertising an unapproved drug use.	No claims that it will fix, improve, or protect against any disease or condition	source

Tools: educational calculators and references only.