Hair loss is caused by hormonal changes that shorten hair growth phases and shrink hair follicles.
research Hair
January 1983 in “Elsevier eBooks” Hair grows from living roots, is made of dead keratin, and goes through growth, rest, and shedding stages.
AGA is caused by genetics and androgens, treatable with finasteride and minoxidil.
4 citations
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June 2021 in “Frontiers in Pharmacology” Bone marrow stem cells and their medium help hair regrowth.
949 citations
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January 2001 in “Cell” Adult mouse skin contains stem cells that can create new hair, skin, and oil glands.
154 citations
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October 1996 in “Proceedings of the National Academy of Sciences of the United States of America” Estrogen affects hair growth and skin cell multiplication.
75 citations
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September 2007 in “Journal of Heredity” FGF5 gene mutations cause long hair in domestic cats.
64 citations
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January 2009 in “The International journal of developmental biology” Hair follicle stem cells are controlled by their surrounding environment.
63 citations
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April 2005 in “Mechanisms of development” Mice with too much Claudin-6 have skin barrier problems and abnormal hair growth.
47 citations
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December 2003 in “Journal of Investigative Dermatology” DS cells in hair follicles can help form and restore hair, especially in hair loss conditions.
22 citations
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April 2017 in “Journal of Investigative Dermatology” Non-coding RNAs are crucial for skin development and health.
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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March 2016 in “Cosmetics” Telogen Effluvium is a condition causing excessive hair loss due to stress, illness, drugs, or hormonal changes, and can be treated with specific products or naturally resolves after 3-4 years.
7 citations
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July 2022 in “Pharmaceutics” The microneedle device with rapamycin and epigallocatechin gallate effectively promoted hair regrowth in mice.
5 citations
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February 2016 in “Hanbang an i bi inhu pibugwa hakoeji/Hanbang an'i'bi'in'hu pibu'gwa haghoeji” Microneedle therapy combined with Hwangryeonhaedoktang solution improved hair growth in mice better than microneedle therapy alone.
4 citations
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May 2025 in “Cells” miR-370-3p slows sheep hair cell growth by blocking SMAD4.
4 citations
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November 2024 in “Materials” The film creates vibrant colors and can be used in food sensors and cosmetics.
4 citations
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January 2011 in “Cell stem cell” Hair follicle stem cells can return to their original niche and help regenerate hair.
2 citations
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June 1994 in “Der Hautarzt” DNA-flowcytometry is a reliable method to evaluate hair growth in androgenetic alopecia.
1 citations
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April 2023 in “American Journal of Clinical Dermatology” Chronic telogen effluvium may not be a unique condition and could be confused with other types of hair loss.
1 citations
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March 2009 in “Hair transplant forum international” The TrichoScan method effectively measures hair growth and helps choose patients for hair restoration surgery.
February 2026 in “International Journal of Molecular Sciences” New biological pathways and potential treatment targets for male pattern baldness were identified.
November 2025 in “Cosmetics” Centella asiatica with growth factors improves hair and scalp health.
June 2025 in “Cancer Management and Research” Improving hair health and managing conditions can enhance scalp cooling effectiveness in preventing hair loss during chemotherapy.
June 2024 in “Skin Research and Technology” Botulinum toxin treatment improves hair follicle width and length in androgenetic alopecia.
April 2024 in “Frontiers in endocrinology (Lausanne)” Melatonin improved secondary hair growth in goats but didn't affect primary hair density or litter size.
July 2023 in “Journal of Clinical Medicine” The document concludes that understanding hair follicle histology and the hair cycle is crucial for diagnosing alopecia.
December 2022 in “Scientific Reports” Stem cells from whiskers can be transplanted to stimulate hair growth.
A protein called sFRP4 can partly inhibit hair growth.
September 2002 in “Fertility and sterility” Metformin can start ovulation and may lower 17P response in PCOS, but six months is too short to improve hair growth or change body fat distribution.