Methylene Blue Protects Hair Follicle Stem Cells From Oxidative and Metabolic Stress To Enhance Hair Regeneration

    February 2026 in “ Aging
    Kavitha Sadashivaiah, Huijing Xue, Kan Cao
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    Studysummary This study observed that methylene blue, a mitochondrial-targeted antioxidant, promotes hair follicle stem cell proliferation and viability through reduced oxidative stress and enhanced β-catenin signaling, and it may also protect against hair loss related to glucagon-like peptide-1 receptor agonists by reducing metabolic stress.
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    The study explores methylene blue's (MB) protective effects on hair follicle stem cells (HFSCs) against oxidative and metabolic stress, enhancing hair regeneration. MB improves HFSC survival and function by reducing reactive oxygen species and activating the β-catenin signaling pathway, crucial for hair growth. It also synergizes with minoxidil, a common hair growth stimulant, to further enhance β-catenin activation. However, vitamins A and C do not enhance MB's effects and may reduce its benefits. While MB shows promise as a therapeutic agent for hair loss, the study lacks participant details, and further in vivo research is needed to confirm these findings and establish clinical dosing.
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