19 citations
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March 2019 in “International Journal of Dermatology” The tattoo machine method safely delivers an average of 1,175 µg/cm² of medication into the skin.
August 2021 in “Journal of Investigative Dermatology” The technique effectively promotes hair growth in young men with androgenetic alopecia.
January 2026 in “International Society of Hair Restoration Surgery” Tattoo machine-assisted drug delivery may improve hair growth in androgenetic alopecia.
7 citations
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August 2018 in “South African Medical Journal” Clinicians should understand tattoos to manage health issues, as tattoos can cause complications and affect medical assessments.
Scalp micropigmentation usually needs two to three sessions, but factors like genetics, coverage area, and health conditions can require more.