Robert F. Kennedy Jr. was recently filmed adding blue liquid to his drink.
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In recent years, celebrities, wellness influencers and biohackers have touted methylene blue for several off-label uses, claiming it can boost energy levels and metabolism, enhance cognitive function and combat aging — though evidence remains limited.
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Methylene blue has gained significant traction in the biohacking community, with popular influencers such as Gary Brecka, Pavel Stuchlik and Dave Asprey promoting its potential benefits online.
In response to the video of Kennedy, Brecka suggested on X that methylene blue can help improve “mitochondrial function,” boost cognitive performance and memory, enhance oxygen delivery to tissues and protect the brain from oxidative stress.
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Social media [fitness influencers] who dabble in methylene blue love to show off their blue tongues — and … the effect lasts for four or five hours.
“It stains a lot of things as well, such as clothes, almost as bad as using turmeric,” added [Tim Gray, a UK-based biohacker]. He also noted that while it wasn’t made for this purpose, people have found success using it to clean fish tanks. “The aquarium companies actually use it for fish tanks because it kills the mold off and cleans the water very efficiently,” he said.
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Canadian physician Dr. Jon cautioned his TikTok followers against taking the drug, warning it can cause potentially deadly complications for people who also take antidepressants. He also dismissed some claims that it could be beneficial in treating cases of COVID-19.
