January 1999 in “Journal of S C C J” Certain growth factors regulate hair growth cycles, male hormones affect hair cycles, and drugs like Minoxidil and Finasteride can stimulate hair growth and inhibit male pattern baldness respectively.
10 citations
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January 2002 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” The cuticle significantly contributes to hair stiffness, making up about 60% of the total bending stress.
2 citations
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January 1995 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Ethyl Carbitol is the best at preventing split ends in permed hair.
March 2024 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Hair becomes less stiff as we age because of a decrease in zinc, which is linked to lower levels of the protein TG3.
January 2017 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Sunlight and chemical treatments change hair's internal structure differently, needing specific care.
January 2009 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Curved human hair has different structures on each side, which might cause its shape and is similar to wool.
233 citations
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February 2018 in “Polymers” Chitin and chitosan are useful in cosmetics for oral care, haircare, and skincare, including UV protection and strength improvement.
116 citations
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August 2010 in “Nature” Scientists turned rat thymus cells into stem cells that can help repair skin and hair.
109 citations
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April 2000 in “European Urology” Finasteride lowers risk of urinary issues and surgery by over 50% in 4 years.
60 citations
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December 2015 in “Clinical and experimental dermatology” Laser hair removal improves quality of life but emotional benefits decrease over time, suggesting more treatments are needed for lasting effects.
58 citations
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January 2006 in “Skin Pharmacology and Physiology” High levels of testosterone and 5α-DHT can lead to cell death in cells important for hair growth.
51 citations
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January 2007 in “Animal Genetics” The gene for slick hair in Senepol cattle is located on chromosome 20 and may involve the SRD5A2 gene.
31 citations
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December 2002 in “Biochimica et biophysica acta. G, General subjects/Biochimica et biophysica acta. General subjects (Online)” The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.
24 citations
,
July 1998 in “Journal of the South African Veterinary Association” Ringworm in dairy calves can spread to humans.
16 citations
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February 2022 in “Science Advances” Follistatin and LIN28B together improve the ability of inner ear cells in mice to regenerate into hearing cells.
15 citations
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March 2024 in “Journal of Clinical Medicine” Selumetinib causes skin and hair side effects in kids with NF1, affecting treatment and quality of life.
13 citations
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November 1995 in “European Archives of Oto-Rhino-Laryngology” 6 citations
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May 2023 in “International journal of molecular sciences” Collagen-enhanced mesenchymal stem cells significantly improve skin wound healing.
5 citations
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August 2018 Plant extracts can benefit skin but must be safe and high-quality.
5 citations
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March 2016 in “Experimental and molecular pathology” Mice with alopecia areata had wider lymphatic vessels in their skin.
April 2026 in “Diagnostics” Parry–Romberg Syndrome can involve the brain even without obvious symptoms, and a new diagnostic framework is suggested for early detection.
January 2026 in “International Journal of Molecular Sciences” Hedgehog pathway inhibitors could be effective in treating melanoma.
January 2026 in “Frontiers in Medicine” Alopecia areata in Taiwan has a high disease burden and needs better research and diagnostic criteria.
April 2018 in “Journal of Investigative Dermatology” Watching, not removing, skin growths with moderate atypia and positive edges is okay; patients may get melanoma elsewhere, especially if they've had it before.
March 2021 in “World rabbit science” Adding 0.2% taurine to Angora rabbits' diet improves wool production and overall health.
September 2020 in “Nature, Environment and Pollution Technology/Nature, environment and pollution technology” Eating plants from polluted areas can cause liver and kidney damage in rats due to toxic metals.
North American ginseng extract helped regrow hair in balding mice.
52 citations
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August 1978 in “Journal of Applied Polymer Science” Human hair's ability to get wet is complex and can change with treatments, damage, and environment.
32 citations
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January 1990 in “Clinical Endocrinology” Women with female pattern hair loss have higher levels of certain androgens, suggesting increased androgen exposure to hair follicles.
25 citations
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August 2015 in “International Journal of Cosmetic Science” Malva verticillata seed extract might help treat hair loss by activating hair growth signals in skin cells.