January 2021 in “European Journal of Molecular & Clinical Medicine” January 2019 in “Journal of Clinical Dermatology” This study found that a hair tonic containing a human umbilical cord blood mesenchymal stem cell-derived conditioned medium significantly increased hair density, thickness, and growth rate in patients with androgenetic alopecia.
January 2018 in “Open access journal of pharmaceutical research” In this study, researchers found that Biofield Energy Healing Treatment significantly increased the proliferation of human hair follicle dermal papilla cells in vitro, suggesting potential hair growth benefits.
15 citations
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July 2017 in “PubMed” This study observed that injecting a combination of human cultured dermal papilla and epithelial cells induced hair growth in a mouse model.
June 2014 in “Biotechnology and Bioprocess Engineering” This study demonstrated that injecting reconstructed dermal papilla-like tissues in mice led to new hair growth, suggesting potential future applications in hair transplantation and baldness treatment.
4 citations
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January 2013 in “Stem cell discovery” This study reports the creation of a human dermal mesenchymal-like stem cell line from an androgenetic alopecia patient, which may serve as an in vitro model to explore alopecia mechanisms.
January 2011 in “Medical Journal of National Defending Forces in Northwest China” This study found that hypodermic injections of human dermal papilla cells conditioned medium led to hair regrowth in women with androgenetic alopecia, with an effective rate of 83.33%.
January 2010 in “International Journal of Dermatology and Venereology” This review discusses the relationship between dermal papilla cells and androgenetic alopecia, noting the involvement of androgens and mental factors, but reports no new clinical results.
37 citations
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October 2009 in “Dermatology” This study suggests that the action of minoxidil in stimulating hair growth likely occurs at the follicular dermal papilla, though it does not induce new follicle formation.
19 citations
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March 1996 in “British Journal of Dermatology” This study found that dermal papilla cells from balding follicles exhibit distinct growth characteristics compared to non-balding cells, suggesting their potential as a model for understanding androgenetic alopecia.
January 1996 in “Springer eBooks” 
August 1993 in “Journal of Dermatological Science” Testosterone metabolism in balding scalp cells may not be the main cause of hair loss.