25 citations,
July 1994 in “Journal of dermatological science” Testosterone affects hair follicles differently across body sites, with beard hair follicles showing more activity of a specific enzyme and presence of androgen receptors compared to scalp hair.
21 citations,
May 2022 in “Frontiers in Cell and Developmental Biology” Hair growth and health are influenced by factors like age, environment, and nutrition, and are controlled by various molecular pathways. Red light can promote hair growth, and understanding these processes can help treat hair-related diseases.
21 citations,
January 2020 in “Pharmaceutical Biology” Salvia plebeia extract can stimulate hair growth.
14 citations,
June 2022 in “BMC genomics” Key genes crucial for sheep hair follicle development were identified, aiding fine wool breeding and human hair loss research.
14 citations,
April 2016 in “PloS one” The KRTAP11-1 gene promoter is crucial for specific expression in sheep wool cortex.
12 citations,
January 2021 in “Journal of Investigative Dermatology” Hair follicle studies suggest that maintaining telomere length could help treat hair loss and graying, but it's uncertain if mouse results apply to humans.
12 citations,
January 2021 in “Springer eBooks” 
11 citations,
November 2021 in “Clinical, Cosmetic and Investigational Dermatology” Resveratrol may help hair grow, but more research is needed.
11 citations,
May 2012 in “Genesis” Bmpr2 and Acvr2a receptors are crucial for hair retention and color.
10 citations,
August 2021 in “Frontiers in cell and developmental biology” Scientists made structures that look like human hair follicles using stem cells, which could help grow hair without using actual human tissue.