July 2026 in “Skin Appendage Disorders” This study observed that plant-derived extracellular vesicles delivered through a microneedling technique showed favorable tolerance and subjective improvement in androgenetic alopecia patients, with 95% reporting perceived improvement and 85% experiencing no adverse effects after six sessions.
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January 2016 in “Surgical and Cosmetic Dermatology” March 2026 in “Portuguese Journal of Dermatology and Venereology” This study observed an unexpected case where a 44-year-old woman developed linear scalp pigmentation, resembling a tattoo, after undergoing a microneedling procedure followed by hair dyeing two days later, emphasizing the need to advise patients on avoiding hair dye application soon after such treatments.
November 2025 in “Dermatology Reports” This review found that microinfusion of medications using tattoo devices (MMP®) shows potential as a minimally invasive method for treating ailments like alopecia and basal cell carcinoma, offering notable improvements with minimal side effects due to localized drug delivery.
January 2023 in “Skin appendage disorders” This review discusses the scalp microinfusion MMP® technique for hair loss treatment and reports no new results; it emphasizes the need for more standardized studies.