October 2023 in “The Cochrane library” The medicine baricitinib was found to notably improve hair regrowth in alopecia areata, but more research is needed on its side effects and other treatments.
August 2023 in “Aesthetic Plastic Surgery” Platelet-rich plasma therapy helps increase hair density in male patients with hair loss but doesn't change hair thickness.
May 2023 in “Materials research foundations” Nanomaterials like silver and gold can improve wound healing but need more research for safety.
March 2021 in “Annals of palliative medicine” Plum-blossom needling with conventional treatments improves hair regrowth in alopecia areata.