Health influencers – perhaps including Health Secretary RFK Jr. – are promoting the chemical as an elixir that improves memory and focus. But evidence for these claims is thin.

Methylene blue inhibits a molecule called monoamine oxidase, whose job is to break down an important brain chemical, serotonin. Many commonly used medications for treating anxiety and depression ...

Over the past five or 10 years, methylene blue has come to be touted online as a so-called nootropic agent—a substance that enhances cognitive function. Vendors claim that it amps up brain ...

But unlike commonly used food dyes – one of which was recently banned by the U.S. Food and Drug Administration – methylene blue is not derived from petroleum, also known as crude oil.

TikTok's latest health trend has creators drinking methylene blue to boost their brain function. Our medical experts break ...

Methylene blue was first synthesized in 1876 as a dye for textiles and ... German physician Paul Ehrlich discovered its ability to stain biological tissues and to kill the parasite that causes ...

Methylene blue inhibits a molecule called monoamine oxidase, whose job is to break down an important brain chemical, serotonin. Many commonly used medications for treating anxiety and depression ...