February 2013 in “Journal of the American Academy of Dermatology” Certain gene variations may increase the risk of alopecia, and platelet-rich plasma treatment can improve hair density in those with hair loss; a rare case of facial Becker's nevus was linked to uneven beard growth.
51 citations,
November 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Beard cells, unlike scalp cells, produce growth factors in response to testosterone, which may explain differences in hair growth.
[object Object] 34 citations,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Human hair growth is influenced by androgen hormones, and red deer mane follicles have similar hormone receptors.
4 citations,
November 2016 in “Dermatologic Therapy” Topical tretinoin may increase beard hair density.
7 citations,
January 2013 in “Indian Journal of Plastic Surgery” Body and beard hair can be used for hair transplants in baldness treatment but keep their original color and curl.