72, has not explained what the liquid was or whether he drank it. However, internet sleuths believe it was methylene blue, a substance originally used as a Victorian-era medicine and now known for ...

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 ...

Kennedy Jr. may be a fan of methylene blue. President Donald Trump’s pick to lead the Department of Health and Human Services was recently filmed adding mysterious blue droplets to his glass mid ...