Add Yahoo as a preferred source to see more of our stories on Google. A solution of methylene blue in an erlenmeyer flask. The trending dye was invented by German chemist Heinrich Caro in 1876.

Methylene blue (ProvayBlue) is a medication doctors use to treat a rare blood condition called methemoglobinemia. Naturally, methylene blue is a solid. But as a medical treatment, it’s dissolved in ...

Methylene blue treats methemoglobinemia, a blood condition. Recently, methylene blue supplements have gained attention for their alleged cognitive and aging support benefits, but these uses require ...