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 ...