51 citations
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November 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” In this study, researchers found that while both beard and scalp dermal papilla cells release similar autocrine growth factors, only beard cells increased production and response with testosterone, suggesting these factors enhance androgen-induced hair growth.
41 citations
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June 2006 in “Journal of Investigative Dermatology” This study identified three genes with significantly higher expression in androgen-sensitive beard dermal papilla cells compared to androgen-insensitive scalp cells, suggesting potential novel signaling pathways in hair follicles.
38 citations
,
August 2012 in “Biochemical and biophysical research communications” This study found that leukocytes and beard hair follicle cells have an endogenous circadian clock, with PER1 and PER3 expression possibly serving as biomarkers for assessing individual biological clock traits.
28 citations
,
August 2013 in “Facial Plastic Surgery Clinics of North America” This article discusses using body and beard hair for hair restoration and reviews the indications, techniques, and risks involved, but reports no new clinical results.
26 citations
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January 2016 in “Journal of cutaneous and aesthetic surgery” Hair transplant combining scalp and beard hair with PRP was successful for scarring alopecia.