14 citations
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July 2015 in “Journal of Cosmetic Dermatology” Sebaceous glands in male pattern hair loss patients have more lobules and might cause early hair growth phase shifts.
21 citations
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April 2004 in “Australasian Journal of Dermatology” A 3-year-old girl has a rare condition causing sparse hair and nail issues, with minimal improvement from treatment.
24 citations
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December 1990 in “Pediatric Dermatology” Tight hairstyles like ponytails may cause hair casts by affecting scalp circulation and causing inflammation.
10 citations
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August 2013 in “Experimental Dermatology” Hairless protein and putrescine regulate each other, affecting hair growth and skin balance.
2 citations
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March 2009 in “Hair transplant forum international” Men generally have a certain thickness of hair at their hairline.
September 2025 in “Scientific periodicals of Ukraine” FUE with DHI effectively restores natural hair growth in difficult areas.
14 citations
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December 2021 in “International journal of molecular sciences” Growth hormone levels affect hair growth and loss, with too much causing excess hair and too little leading to hair loss.
May 2013 in “International journal of innovative research and development” The document concludes that understanding hair's chemical makeup is key to creating effective hair growth products that also improve social confidence.
4 citations
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October 2021 in “Microorganisms” Men with androgenetic alopecia have different scalp oils and microbes compared to those without.
January 2010 in “프로그램북(구 초록집)” 3 citations
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February 2004 in “Anais Brasileiros De Dermatologia” There's a red birthmark on the scalp.
24 citations
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May 2010 in “Hautarzt” Different hormones affect hair growth and conditions, with some causing hair loss and others promoting it.
June 2014 in “Biotechnology and Bioprocess Engineering” Injecting lab-grown hair cells into the scalp can regrow hair.
25 citations
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October 1996 in “Dermatologic Clinics” Loose Anagen Syndrome causes easy-to-pull, thin hair, mainly in young girls, and improves with age.
27 citations
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February 1991 Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.
January 2014 in “Yearbook of Plastic and Aesthetic Surgery” May 2017 in “Journal of the American Academy of Dermatology”
27 citations
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November 2005 in “Archives of Dermatological Research” Choosing hair follicles at the same growth stage leads to more consistent hair growth experiments.
18 citations
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April 2010 in “Langmuir” Human hair surface varies in wettability, showing daily and monthly patterns.
February 2020 in “The Pharmaceutical Society of Japan”
17 citations
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December 2019 in “Stem Cell Research & Therapy” Grouping certain skin cells together activates a growth pathway that helps create new hair follicles.
1 citations
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June 1942 in “JAMA” Middle-aged men are usually either bald or gray, not both.
February 2026 in “Chemical Engineering Journal” PCA hydrogel promotes hair growth by enhancing blood vessel formation and hair follicle stem cell activity.
October 2019 in “Zenodo (CERN European Organization for Nuclear Research)” Capilcep effectively promotes hair growth and is safe, but long-term effects need more research.
March 2023 in “Reactions Weekly”
April 2025 in “Research Journal of Topical and Cosmetic Sciences” Herbal hair oil with natural ingredients can effectively promote hair growth.
January 1997 in “Fundamental & Clinical Pharmacology” June 1996 in “Journal of Dermatological Science”
November 1994 in “The Journal of Dermatologic Surgery and Oncology” Thousand-graft hair transplants offer better coverage and look more natural but have concerns about graft survival and cosmetic risks.