A recent viral video of Robert F. Kennedy Jr. using a bright blue liquid sparked widespread curiosity about methylene blue—a substance that has been making waves on social media as a supposed ...

Methylene blue is a synthetic compound with a deep blue color that has been used for over a century in various medical, ...

However, internet sleuths believe it was methylene blue, a substance originally used as a Victorian-era medicine and now known for disinfecting fish tanks. The video went viral after Vance Elrod ...