March 2013 in “CRC Press eBooks” Follicular unit transplantation, a hair restoration technique using small hair grafts, was pioneered by Bob Limmer in the late 1980s and is still widely used today with minor improvements.
May 2026 in “Dermatology Online Journal” Dermarollers for hair growth show mixed results and can cause risks like damage and infection.
March 2021 in “CRC Press eBooks” New hair treatment methods are evolving, with microneedling as a promising technique for hair growth.
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August 2023 in “Advanced Drug Delivery Reviews” Microneedles are promising for long-acting drug delivery and can improve patient compliance, but more data is needed to confirm their effectiveness.
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July 2022 in “Advanced healthcare materials/Advanced Healthcare Materials” A drug-free microneedle patch significantly promotes hair growth and prevents infections.