23 citations
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December 1991 in “Annals of the New York Academy of Sciences” This study reported that human balding scalp grafted onto nude mice showed reduced linear growth rates of both vellus and terminal hairs.
August 2023 in “Stem Cell Research & Therapy” In this study on male androgenetic alopecia, the researchers reported significant increases in hair count, density, and thickness with minimal side effects over 6 weeks using adipose-derived stem cell conditioned media and minoxidil, but found no significant differences between concentrated and non-concentrated treatments.
August 2025 in “Archives of Dermatological Research” In this randomized controlled trial, oral minoxidil at 2.5 mg daily was more effective than topical minoxidil for increasing hair thickness, counts, and density in men with androgenetic alopecia, demonstrating more significant improvements and better compliance over six months.
76 citations
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December 2006 in “Journal of Dermatological Science” This study observed that Japanese women experience diffuse central hair loss after age 40, characterized by reduced hair density and thicker hair ratio rather than vellus-like hairs.
June 2024 in “Journal of cosmetic dermatology” The document corrects errors in a table about hair loss in women.