Controversial liquid touted by biohackers may help hair grow — and prevent thinning caused by GLP-1s
A recent study suggests that methylene blue, a controversial liquid popular in biohacking, may promote hair growth and prevent thinning associated with GLP-1 medications. Researchers at the University of Maryland found that the substance boosts hair follicle stem cell growth and reduces oxidative stress. The findings indicate potential benefits for those experiencing hair loss as a side effect of weight loss drugs like semaglutide.
- ▪Methylene blue is being studied for its potential to support scalp health and hair growth.
- ▪The substance has shown promise in boosting hair follicle stem cell growth and survival in lab tests.
- ▪Users of GLP-1 medications have reported hair thinning as a side effect, which methylene blue may help address.
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Wellness Controversial liquid touted by biohackers may help hair grow — and prevent thinning caused by GLP-1s By McKenzie Beard Published May 22, 2026, 1:11 p.m. ET See more of our coverage in your search results. Add The New York Post on Google Balding might make you blue — but this news won’t. A recent study suggests that a controversial liquid popular in biohacking and wellness circles could support scalp health and hair growth. Researchers say the substance may even hold promise for GLP-1 users with thinning crowns, a frustrating side effect that’s become increasingly common as the blockbuster weight loss and diabetes drugs soar in popularity. 3 A drug already in use may help protect hair follicles from aging and stress, a new study found.
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