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Matt Kelly explains why reagent-grade methylene blue is dangerous for human or animal use. Reagent grade, sold for labs and art, has lower purity and safety standards than pharmaceutical-grade material.

Matt Kelly explains why reagent-grade methylene blue is dangerous for human or animal use. Reagent grade, sold for labs and art, has lower purity and safety standards than pharmaceutical-grade material.
there's product drug issues. There are differences between the purity and the safety of the, the drug grade versus all of the other grades. What is commonly sold on the internet is called reagent grade, which means if I'm doing lab experiments or art, you know, using it as a dye or some other thing, I might use reagent grade. Okay, that's what that's made for. That's totally fine, right? If I'm going to use it in a human or even in an animal situation, okay, I want the purest, cleanest version, which is not reagent grade. And there is big differences.