March 2021 in “British Journal of Dermatology” This study using a humanized mouse model of androgenetic alopecia suggests that platelet-rich plasma may promote hair regrowth and improve hair characteristics in vivo.
June 2025 in “Research Square (Research Square)” This study reported that intradermal injections of stem cell exosomes appeared safe and significantly improved hair density and diameter in male androgenetic alopecia patients over 24 weeks, suggesting the therapy may be a promising new treatment option worthy of further investigation.
November 2014 in “British Journal of Dermatology” Hair loss is due to thinner hairs, not less hairs; hair diameter indicates balding progression and treatment effectiveness.
September 2023 in “The Journal of Dermatology” In this study, injecting dermal sheath cup cells into affected areas of pattern hair loss improved hair thickness and patient-reported hair appearance in 62.9% of the participants, with better results in women, without serious side effects.
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November 1987 in “Pediatric Dermatology” This article reviews common hair growth abnormalities in children, emphasizing the importance of distinguishing normal development from potential signs of metabolic disorders and indicates no new clinical results.