August 2009 in “한국실험동물학회 학술발표대회 논문집” Fermented Rhus Verniciflua Stokes Extract may help hair grow in cells and mice.
Hair follicle stem cells can be cultured, but better methods are needed for longer growth.
January 1996 in “Springer eBooks”
12 citations
,
February 2010 in “Journal of The American Academy of Dermatology” A cancer drug caused unusual hair growth on a 100-year-old man's scalp and eyelashes.
25 citations
,
June 2022 in “Developmental cell” Overactivating Hedgehog signaling makes hair follicle cells in mice grow hair faster and create more follicles.
September 2016 in “Medical Sains/Medical sains” Liquorice extract promotes hair growth in male rabbits, with 2.5% concentration being most effective.
October 2021 in “The journal of investigative dermatology/Journal of investigative dermatology” Desmoglein 3 is important for keeping hair follicle stem cells inactive and maintaining their special properties.
28 citations
,
October 2010 in “Targeted Oncology” Trastuzumab may cause tufted hair folliculitis as a side effect.
48 citations
,
April 1995 in “PubMed” Testosterone helps beard and axillary hair cells grow by releasing growth factors from dermal papilla cells.
21 citations
,
April 2000 in “Journal of Cutaneous Pathology” The hamartoma is an abnormal hair growth with limited development in the upper hair follicle.
4 citations
,
July 2006 in “British journal of dermatology/British journal of dermatology, Supplement” Testosterone increases hair follicle cell growth when beard or axillary skin cells are present together.
December 2004 in “PLoS ONE” The Foxn1(-/-) phenotype disrupts hair growth and affects skin stem cells.
January 2010 in “Springer eBooks” Pubic hair transplantation can help women with little to no pubic hair, using scalp hair for a natural look and requires careful aftercare.
5 citations
,
October 2021 in “Signal Transduction and Targeted Therapy” Stress hormone corticosterone suppresses hair growth by affecting stem cell activity and Gas6 protein expression.
2 citations
,
November 2007 in “Journal of Investigative Dermatology” Fluocinolone acetonide slows down hair follicle stem cells but speeds up skin cell growth in mice.
August 2023 in “Journal of controlled release” STAR particles can improve the effectiveness of topical hair growth treatments without causing skin irritation.
1 citations
,
July 2023 in “Cureus” A rare hair disorder with multiple hairs from one follicle was found on a patient's abdomen.
Dark hair with a red beard likely evolved for camouflage, not attraction.
124 citations
,
April 1992 in “Journal of Endocrinology/Journal of endocrinology” Beard hair follicles have more androgen receptors than non-balding scalp hair follicles.
January 2026 in “JAAD International” Baricitinib effectively promotes beard regrowth in most men with alopecia areata universalis.
2 citations
,
September 2020 in “International Journal of Applied Pharmaceutics” Clove leaf extract in hair tonic boosts rabbit hair growth.
15 citations
,
August 2004 in “Journal of the American Academy of Dermatology” Shaving can cause a viral skin infection that looks like bacterial folliculitis.
550 citations
,
December 2005 in “The Journal of clinical investigation/The journal of clinical investigation” Researchers successfully isolated and identified key markers of stem cell-enriched human hair follicle bulge cells.
5 citations
,
April 2023 in “Pharmaceuticals” The new delivery system improved hair growth in alopecia treatment.
7 citations
,
April 2021 in “British Journal of Dermatology” Topical tofacitinib may effectively and safely regrow facial hair in some people with alopecia areata.
8 citations
,
July 2004 in “Journal of morphology” Marsupial hair structure and keratin distribution are similar to placental mammals.
3 citations
,
June 2021 in “Frontiers in genetics” The protein STAT3 slows down cell growth by blocking the FST gene, which affects hair development in sheep.
June 2023 in “The Journal of Family Practice” The hair loss is likely due to a fade haircut.
September 2001 in “Swiss Medical Forum ‒ Schweizerisches Medizin-Forum” January 2007 in “Linchuang pifuke zazhi” A 15-year-old boy had a rare skin growth on his buttock.