2% Methylene Blue 2-Pack - USP Grade High Concentration 60ml Amber Glass Bottles

If you're looking for serious quality methylene blue, this 2-pack gives you double the concentration of most standard formulas at 2% potency. Each 60ml bottle comes in protective amber glass with a glass dropper - one drop equals 1mg, so dosing is super precise. Made in Canada in a GMP facility with USP grade ingredients and third-party tested for purity. No heavy metals, formaldehyde, alcohol, or any nasty contaminants. The bottles even come in heavy-duty cardboard tubes to prevent light degradation and breakage during shipping. If you need pharmaceutical-grade methylene blue for research or other purposes, this is about as pure as it gets without a prescription. Seriously, the quality control and testing they do puts most other suppliers to shame. Plus their customer support actually responds within 24 hours if you have any questions.