IT is notoriously difficult to produce consistent and uniform results in the vital staining of nerve fibres with methylene blue. Using Weddell's methods 1,2, both local and intravenous methylene blue ...

Wellness enthusiasts seeking to hack their way to health and longevity have a new favorite remedy — one that stains their tongues blue. Methylene blue has been around since the 1870s when it was used ...

Born as a coal-tar dye, reborn as a “magic bullet,” methylene blue has taken an improbable journey from textile vats to today’s biohacking. Its appeal rests on a seductive mix of real biochemistry and ...