47 citations
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July 1967 in “Science” Not eating enough protein can cause hair roots to shrink and lose color, and hair to become thinner.
13 citations
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March 2000 in “Veterinary Dermatology” Dogs have a skin condition like human pseudopelade, causing hair loss that doesn't improve with treatment.
13 citations
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January 1993 in “Archives of dermatological research” Human hair follicles can grow and stay healthy for up to 8 days in a lab setting.
1 citations
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December 2001 in “Linchuang pifuke zazhi” Some Chinese herbs can promote or inhibit hair growth.
20 citations
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November 1968 in “The Lancet” Potassium levels affect blood sugar and insulin during dialysis, and malnutrition changes children's hair roots.
22 citations
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October 2019 in “International Journal of Nanomedicine” The nanoparticles improved hair growth and enlarged hair bulbs.
October 2019 in “DOAJ (DOAJ: Directory of Open Access Journals)” The nanoparticles effectively deliver herbal extract to enhance hair growth.
December 2018 in “Вестник Российской Военно-медицинской академии” PRP therapy significantly improves hair growth and density in men with androgenic alopecia.
1 citations
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July 2017 in “Microscopy and Microanalysis” Iron oxide nanoparticles mainly enter the skin through hair follicles and sebocytes, not the dermis.
46 citations
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April 1971 in “American Journal of Clinical Nutrition” Lack of protein causes hair root damage, but it can be reversed by eating protein again.
May 2026 in “Frontiers in Pharmacology” Dendrobium officinale polysaccharide helps hair regrowth in hair loss mice by affecting local steroid metabolism and hair follicle responses.
4 citations
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September 2003 in “Livestock Production Science” Epidermal growth factor reduces hair growth, but cortisol does not.
March 2025 in “Frontiers in Veterinary Science” Changing light exposure boosts hormone levels and antioxidant activity, improving cashmere growth in goats.
December 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Stress can cause a type of hair loss in mice lacking the CCHCR1 gene.
March 2009 in “Chinese Journal of Dermatology” Melanocytes in the outer root sheath are likely stem cells that grow fast but stay immature.
7 citations
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March 2007 in “International Journal of Dermatology” Targeting FGFR-1 with antisense oligonucleotides may help treat baldness by increasing hair follicle activity.
54 citations
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July 1967 in “Science” Decomposed tritiated thymidine is less accurate for DNA tracing, and hair changes can indicate malnutrition.
September 1989 in “PubMed” The method allows detailed observation of hair tissue structures.
134 citations
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September 2008 in “Lasers in surgery and medicine” Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.
40 citations
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May 2012 in “British Journal of Dermatology” Recognizing specific features of African-American hair can help diagnose hair loss conditions.
September 2024 in “Meditsinskiy sovet = Medical Council” As women age, hair follicles decrease in number and hair width tends to reduce.
27 citations
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January 1993 in “Archives of Dermatological Research” Hair follicles can grow and increase DNA synthesis in a serum-free environment, and minoxidil sulphate boosts this process.
26 citations
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September 2005 in “International Journal of Dermatology” Hair shape is determined by genetic, molecular, and cellular factors.
11 citations
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October 1997 in “British Journal of Dermatology” Wool follicles grew fibres for 8-10 days in a serum-free culture, influenced by calcium, glucose, amino acids, and insulin.
58 citations
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June 1987 in “Archives of Dermatological Research” EGF and FGF boost hair cell growth, hydrocortisone slows it, and minoxidil doesn't affect it.
9 citations
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June 2014 in “British Journal of Dermatology” The study found that balding scalps have more thin hairs and larger oil glands, which might contribute to skin conditions related to hair loss.
4 citations
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August 2023 in “Nature Communications” Mouse zigzag hair bends form due to a 3-day cycle of changes in hair progenitors and their environment.
January 2023 in “Vìsnik problem bìologìï ì medicini” Androgenic alopecia causes hair follicle degradation and skin restructuring, but some hair elements remain.
19 citations
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November 2001 in “Journal of Investigative Dermatology Symposium Proceedings” Human hair follicles can regenerate and recover after severe injury by going through a brief abnormal resting phase before growing again.
42 citations
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April 2008 in “Acta materialia” Different ethnicities and treatments affect human hair strength and structure.