195 citations,
January 2008 in “Photochemistry and Photobiology” Visible light can damage skin and most sunscreens don't block it well; more research is needed on its effects and protection methods.
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June 2020 in “Colloids and surfaces. B, Biointerfaces” Heating hair proteins changes their structure and may improve their blood clotting ability.
15 citations,
June 2015 in “Lasers in Medical Science” The 830-nm wavelength was most effective at promoting hair growth in rats using low-level laser therapy.
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July 2004 in “Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE” Near-infrared laser therapy with Indocyanine Green dye improves acne by reducing inflammation without side effects.
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July 2019 in “Lasers in surgery and medicine” The erbium-glass laser effectively promotes hair regrowth in alopecia areata.