The Efficacy of LED Microneedle Patch on Hair Growth in Mice

November 2022 in “ Archives of Dermatological Research ”

Leelawat Kittigul, Jitlada Meephansan, Punyaphat Sirithanabadeekul, Sirashat Hanvivattanakul, Raksawan Deenonpoe, Werayut Yingmema, Kittipong Tantisantisom, Sattra Thongma, Yossawat Rayanasukha, Thitikorn Boonkoom, Punyanuch Adulyaritthikul, Paisan Khanchaitit

LED microneedle patch hair growth red light green light blue light microneedle patch hair follicles collagen angiogenesis androgenetic alopecia

TLDR The green-light LED microneedle patch effectively promotes hair growth.

The study on 35 male C57BL/6 mice evaluated the efficacy of a novel LED microneedle patch for hair growth. Mice were exposed to red, green, and blue light at 0.2 J/cm² daily for 28 days, with and without the microneedle patch. Significant hair growth was observed, especially with green light, and the microneedle patch enhanced both the speed and extent of hair growth in all light groups. Histopathological analysis showed increased hair follicles, collagen, angiogenesis, and cell infiltration, particularly with the green-light LED microneedle patch. The study concluded that the green-light LED microneedle patch effectively promotes hair growth and could provide new treatment options for androgenetic alopecia, with no serious adverse effects noted.

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