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 ...

The trendy supplement was originally developed as a fabric dye—and later used as a malaria treatment. We asked experts if it really has the cognitive benefits touted on social media. A solution of ...

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 ...

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 ...

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 ...

Methylene blue is all over TikTok, with fans of the supplement showing off their blue tongues and swearing the dye drops do everything from boosting brain power to warding off cancer. But can this ...