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This review discusses the use of derma rollers for cosmetic purposes and their potential in transdermal drug delivery by summarizing evidence on their design, efficacy, safety, and concerns from preclinical and clinical reports.

This study found that both intradermal injection and derma roller techniques for QR678Neo® hair regrowth therapy improved androgenetic alopecia symptoms, with intradermal injections showing non-significantly better video-microscopic outcomes but more pain and erythema associated with derma rollers.

This study found that photodynamic therapy with methyl 5-aminolevulinic acid was ineffective for treating alopecia totalis, even with microneedle rolling to enhance drug delivery.

Scalp Roller therapy helped improve hair growth in patients with hard-to-treat alopecia areata.

This study found that micro needle roller therapy enhanced hair follicle development and increased growth factor expression in C57BL/6 mice, suggesting potential benefits for alopecia treatment.