July 1997 in “Hair transplant forum international” I'm sorry, but there's no specific conclusion provided for me to summarize.
9 citations
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August 2020 in “Ecological indicators” Laser ablation ICP-MS is effective for tracking trace elements in polar bear hair over time.
5 citations
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May 2021 in “Veterinary medicine and science” Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
May 2019 in “Hair transplant forum international” Improvements have been made at the American Board of Hair Restoration Surgery.
November 2014 in “Hair transplant forum international” The American Board of Hair Restoration Surgery provides professional standards and certifications for hair restoration procedures.
March 1999 in “Hair transplant forum international”
November 2019 in “Hair transplant forum international” You need a medical license to do hair restoration surgery in California.
December 2025 in “Clinical Case Reports” Exosome therapy helped regrow and repigment beard hair in a man with alopecia.
90 citations
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July 2014 in “Conservation Physiology” Hair cortisol levels in brown bears can be affected by both long-term and short-term stress.
33 citations
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January 2017 in “Conservation physiology” Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.
March 2026 in “Zenodo (CERN European Organization for Nuclear Research)” March 2026 in “Zenodo (CERN European Organization for Nuclear Research)” December 2010 in “SciVee”
30 citations
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March 2017 in “PLoS ONE” Sulfur slightly improved diet estimates for grizzly bears, but hair growth timing varied, affecting results.
21 citations
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January 2017 in “MethodsX” Methanol is better than isopropanol for washing grizzly bear hair to measure cortisol.
12 citations
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January 2019 in “Sleep medicine” Night shift work disrupts the body's natural clock genes.
November 2025 in “SKIN The Journal of Cutaneous Medicine” Baricitinib significantly regrows hair in nasal, genital, and beard areas for severe alopecia areata.
May 2010 in “Journal of Investigative Dermatology”
September 2021 in “PubMed” Hair transplantation is effective for treating scar-related hair loss on the head and neck.
July 2021 in “World journal of plastic surgery” Hair transplantation is effective for treating scar-related hair loss on the head and neck.
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.
December 2022 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” January 2022 in “Aesthetic surgery journal”
41 citations
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June 2006 in “Journal of Investigative Dermatology” Beard and scalp hair cells have different gene expressions, which may affect beard growth characteristics.
37 citations
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August 2013 in “Facial Plastic Surgery Clinics of North America” Facial hair restoration is generally successful and satisfying for patients when done with quality techniques and realistic expectations.
34 citations
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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.
25 citations
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May 2011 in “Annals of Plastic Surgery” Nonhead hair transplantation is effective for patients with limited head donor hair, but more research is needed.
22 citations
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January 2017 in “Indian Dermatology Online Journal” Body hair transplants can treat baldness but differ from scalp hair and need more research on long-term results and side effects.
18 citations
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May 2016 in “Aesthetic Surgery Journal” Body hair transplantation is an effective method for restoring hair in people with severe baldness and limited scalp donor hair.
14 citations
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March 2019 in “Facial Plastic Surgery Clinics of North America” Hair transplantation can help transgender patients affirm their gender identity.