research Microneedle-mediated hypoxic extracellular vesicle-encapsulated selenium nanoparticles delivery to treat androgenetic alopecia
This study found that a biocomposite microneedle system, which includes selenium nanozyme and hypoxic extracellular vesicles, enhanced hair density and follicle diameter in androgenetic alopecia mice by fighting inflammation, promoting blood vessel growth, reducing reactive oxygen species, and counteracting androgen effects.

