June 2025 in “Universal library of medical and health sciences.” External factors like pollution, stress, and poor nutrition can negatively affect hair growth.
July 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” The mesenchyme can start hair growth, but the exact signal that causes this is still unknown.
April 2018 in “Journal of Investigative Dermatology” Aging reduces skin cell renewal and defense against germs due to TGFbeta, but blocking TGFbeta could help restore these functions.
September 2016 in “Journal of dermatological science” Adult skin cells can be used to create new hair in a lab.
November 2018 in “Journal of investigative dermatology, venereology and cosmetology” Biofield Energy Treatment, specifically The Trivedi Effect®, can potentially enhance hair growth by increasing the growth activity of human dermal papilla cells.
65 citations
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August 2007 in “Experimental Dermatology” Human hair follicles can make and process prostaglandins, which may affect hair growth.
2 citations
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July 2019 in “PeerJ” Removing the VDR gene in skin cells reduces their growth and affects hair-related genes.
1 citations
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January 2022 in “BMC Genomic Data” The study found that androgen receptors in skin cells mainly affect the focal adhesion pathway and control the caveolin-1 gene, with implications for new treatments for related diseases.
July 2025 in “Scientific Reports” Serotonin helps hair grow by activating certain cells.
June 2016 in “Experimental Dermatology” Changing hair follicle identity could potentially reverse balding.
205 citations
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April 2005 in “Journal of Investigative Dermatology” Scientists have found a way to create hair follicles from skin cells of newborn mice, which can grow and cycle naturally when injected into adult mouse skin.
100 citations
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September 2017 in “Molecular and Cellular Endocrinology” Male hormones and their receptors play a key role in hair loss and skin health, with potential new treatments being explored.
77 citations
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March 2001 in “Clinics in Dermatology” Androgenetic alopecia involves genetics, hormones, and can be treated with medications or surgery.
39 citations
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October 2013 in “Plastic and Reconstructive Surgery” Human alpha defensin 5 helps heal wounds, reduce bacteria, and grow hair on burned skin.
17 citations
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October 2017 in “Scientific reports” Fine wool sheep have more genes for wool quality, while coarse wool sheep have more for skin and muscle traits.
13 citations
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March 2013 in “International Journal of Cosmetic Science” AcSDKP may help prevent skin and hair aging and promote their growth.
11 citations
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June 2016 in “npj Regenerative Medicine” The symposium concluded that understanding how different species repair tissue and how this changes with age can help advance regenerative medicine.
8 citations
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July 2012 in “Cambridge University Press eBooks” Androgens can both increase body hair and cause scalp hair loss.
5 citations
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January 2017 in “Molecular Medicine Reports” Human hair follicle cells can be turned into neural stem cell-like cells, which might help treat brain diseases.
1 citations
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December 2023 in “Scientific reports” 3D microenvironments in microwells improve hair follicle stem cell behavior and hair regeneration.
April 2019 in “Journal of Investigative Dermatology” Activating the Sonic hedgehog pathway can help regenerate hair follicles during wound healing in mice, potentially improving regeneration after injury.
September 2017 in “Journal of Investigative Dermatology” Researchers created human cells that can turn into sebocytes, which may help study and treat skin conditions like acne.
Laser hair removal may cause skin changes that prevent hair regrowth.
2 citations
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April 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” The skin's basement membrane is specially designed to support different types of connections between skin layers and hair follicles.
253 citations
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March 1994 in “Developmental dynamics” Apoptosis is essential for human skin development and forming a functional epidermis.
126 citations
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January 2009 in “International Journal of Trichology” Oxidative stress contributes to hair graying and loss as we age.
101 citations
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March 2019 in “Cell Stem Cell” Certain immune cells in the skin release a protein that stops hair growth by keeping hair stem cells inactive.
90 citations
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January 1979 in “International review of cytology” Wool follicles are complex, involving interactions between different cell types and structures.
37 citations
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January 2022 in “Frontiers in Genetics” Aging reduces dermal sheath cells, affecting youthful skin appearance.
30 citations
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December 2014 in “Toxicological Research” Peppermint oil can effectively promote hair growth without being toxic.