Robert F. Kennedy Jr. was seen on a plane adding a blue liquid to his drink, leading to online speculation. The substance is believed to be methylene blue, known for its potential health benefits.

In cancer research, methylene blue has shown potential as a “photosensitiser” in treatments using laser light – meaning it makes certain cancer cells more vulnerable to treatment.

The chemical compound known as methylene blue boasts a long history of use in numerous medical settings. Its importance is primarily drawn from its ability to enhance mitochondrial function.