September 2016 in “Journal of The American Academy of Dermatology” The girl has a genetic hair condition causing thin hair since childhood.
December 2022 in “Nature Communications” Bead-jet printing of stem cells improves muscle and hair regeneration.
64 citations
,
January 2009 in “The International journal of developmental biology” Hair follicle stem cells are controlled by their surrounding environment.
22 citations
,
June 1977 in “Postgraduate Medicine” Certain skin conditions are more common in black people due to hair and skin differences.
6 citations
,
July 1976 in “JAMA” Black patients have unique skin conditions that require specific knowledge for proper treatment.
April 2026 in “Laboratory Animal Research” The new Hairless R/J mice model improves imaging for tumor monitoring and cancer therapy evaluation.
January 2024 in “ACS Biomaterials Science & Engineering” A new method using a microfluidic device can prepare hair follicle germs efficiently for potential use in hair loss treatments.
22 citations
,
April 1972 in “Journal of Steroid Biochemistry” Beard hair follicles convert testosterone to 5α-dihydrotestosterone most intensively.
67 citations
,
August 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Androgens promote beard growth but cause hair loss in androgenetic alopecia, with TGF-β1 as a potential treatment target.
66 citations
,
May 2014 in “Conservation Physiology” Grizzly and black bears have different stress and hormone responses to salmon availability, influenced by nutrition and social competition.
48 citations
,
April 1995 in “PubMed” Testosterone helps beard and axillary hair cells grow by releasing growth factors from dermal papilla cells.
September 2023 in “Journal of the American Academy of Dermatology” Current guidelines may overlook beard and sideburn involvement in diagnosing frontal fibrosing alopecia in men.
11 citations
,
October 2017 in “Mycoses” An 80-year-old man's deep beard infection was cured with oral terbinafine after identifying the fungus Trichophyton verrucosum.
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.
October 2025 in “Australasian Journal of Dermatology” Bimekizumab effectively treated a man's chronic beard hair loss.
October 2022 in “International Journal of Homoeopathic Sciences” Homeopathic treatment may help with beard hair loss.
June 2021 in “International journal of research in dermatology” Shaving and avoiding brushing improved the patient's beard hair condition.
June 2011 in “International Journal of Dermatology” A man's red tattoo caused a skin reaction and hair loss in his beard, which improved after treatment.
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.
1 citations
,
July 2022 in “Clinical dermatology review” Hair transplantation is an effective hair loss treatment with two main techniques, requires careful planning, and can improve beard and eyebrows appearance.
2 citations
,
August 2025 in “JAAD reviews.” Frontal fibrosing alopecia significantly affects men, often causing hair loss in eyebrows, beard, and sideburns.
January 2015 in “Przegla̧d dermatologiczny” Intralesional triamcinolone is the most effective treatment for alopecia areata, followed by excimer light therapy, and then topical minoxidil. The scalp responds better to treatment than the beard area.
21 citations
,
January 2020 in “Conservation Physiology” Hair follicles increase hair cortisol levels, so consistent hair collection methods are important.
January 2025 in “Conservation Physiology” Bear hair grows 0.10 to 1.05 mm per day, varying by individual and season.
May 2025 in “Current Drug Safety” Topical minoxidil can rarely cause swelling due to fluid retention.
17 citations
,
January 2010 in “International journal of trichology” A man experienced hair loss from radiotherapy, which can be temporary or permanent depending on radiation dose, with potential treatments available.
10 citations
,
March 2008 in “DMW - Deutsche Medizinische Wochenschrift” Estrogen treatments can cause unwanted effects in men and should be used cautiously.
July 2023 in “International Journal of Trichology” The man's hair turned white suddenly but returned to normal on its own in 6 months.
January 2022 in “Open Journal of Endocrine and Metabolic Diseases” Hirsute women have higher testosterone, cholesterol, and glucose levels.
173 citations
,
July 1995 in “Biochemical and biophysical research communications” Male hormones promote hair cell growth by using a growth factor from nearby skin cells.