Microneedle-Mediated Therapies in Hair Loss: Applications, Mechanisms, and Future Directions

The document reviews the potential of microneedle-mediated therapies for treating hair loss, highlighting their ability to enhance drug delivery and stimulate hair regrowth through mechanisms like wound healing and activation of signaling pathways. Microneedling is effective for various types of hair loss, including androgenetic alopecia and alopecia areata, and shows improved results when combined with treatments like minoxidil and platelet-rich plasma. The technology is minimally invasive and generally well-received by patients. The review emphasizes the need for further research to optimize treatment protocols and understand the biological mechanisms, with a call for more large-scale clinical trials to establish standardized guidelines. Additionally, microneedles are explored for their potential in hair transplantation and tissue-engineered hair regeneration, though challenges remain in optimizing materials and ensuring cell viability.