24 citations
,
August 2011 in “Experimental Dermatology” The flap assay grows the most natural hair but takes the longest, the chamber assay is hard work but gives dense, normal hair, and the patch assay is quick but creates poorly oriented hair with some issues.
51 citations
,
September 2020 in “Cell Metabolism” Glutamine metabolism affects hair stem cell maintenance and their ability to change back to stem cells.
44 citations
,
June 2018 in “Journal of Cellular Physiology” Researchers developed a 3D model of human hair follicle cells that can help understand hair growth and test new hair loss treatments.
40 citations
,
January 2016 in “PLoS ONE” Shorter daylight increases hair growth in Cashmere goats.
11 citations
,
March 2013 in “Journal of Applied Biomedicine” β-catenin helps hair follicle stem cells grow by activating a specific cell pathway.
9 citations
,
August 2013 in “Journal of Tissue Engineering and Regenerative Medicine” Transplanted baby mouse skin cells grew normal hair using a new, efficient method.
8 citations
,
March 2018 in “Cosmetics” UV radiation damages hair by creating holes and peeling cuticle layers.
7 citations
,
January 2015 in “Genetics and molecular research” The RORα gene is active in different parts of cashmere goat hair follicles and may be influenced by melatonin, especially in December when hair growth changes.
3 citations
,
January 2021 in “Skin appendage disorders” Trichoscopy is useful for correctly diagnosing tinea capitis in adults with unexplained hair loss.
3 citations
,
June 2017 in “Journal of Biomaterials Applications” Keratin extract from human hair was found to promote hair growth in mice.
3 citations
,
April 2015 in “American journal of biomedical sciences” Androgens play a key role in hair growth and disorders like baldness and excessive hairiness.
1 citations
,
January 2023 in “Skin appendage disorders” Hair oils can worsen seborrheic dermatitis in black patients.
1 citations
,
November 2019 in “International Journal of Women's Dermatology” Ketoconazole shampoo can cause rare pink hair discoloration.
1 citations
,
January 2015 in “Genetics and Molecular Research” Stopping S100A3 activity slows down hair growth in mice.
February 2024 in “Biomedical materials” Scientists created a lab-grown hair follicle model that behaves like real hair and could improve hair loss treatment research.
September 2020 in “Research Square (Research Square)” Long noncoding RNAs help regulate hair follicle density in rabbits.
September 2014 in “Springer eBooks” Aging causes hair to gray and thin, with the timing of graying varying by race, and factors like oxidative stress and genetics can lead to hair loss.
93 citations
,
February 2008 in “Atmospheric environment” Ozone reacts more with unwashed hair, producing compounds due to scalp oils, which could lower ozone exposure but increase exposure to reaction products.
58 citations
,
February 2016 in “Scientific reports” Blocking BACE1 and BACE2 enzymes causes hair color loss in mice.
4 citations
,
March 2019 in “Experimental Biology and Medicine” Exposure to 50 Hz electromagnetic fields may help mice grow hair faster.
August 2004 in “Veterinary Dermatology” Adult-onset hair loss in Chesapeake Bay retrievers may be linked to abnormal adrenal hormone production.
August 2025 in “Journal of the Korean Society of Cosmetology” Scalp and hair research in Korea has become more diverse and interdisciplinary, focusing on practical applications.
Hair restoration surgery has improved to transplant hair in natural groupings, but it's labor-intensive and can't fully restore normal hair density.
1 citations
,
August 2016 in “Journal of Investigative Dermatology” Activating STAT5 in the skin's dermal papilla is key for starting hair growth, regenerating hair follicles, and healing wounds.
1113 citations
,
August 1999 in “The New England Journal of Medicine” Hair follicle biology advancements may lead to better hair growth disorder treatments.
520 citations
,
February 2001 in “Journal of Clinical Investigation” VEGF helps hair grow and determines follicle size by increasing blood vessel growth.
192 citations
,
March 2017 in “Cell host & microbe” Hair follicle development and microbes help regulatory T cells gather in newborn skin.
175 citations
,
December 2014 in “PLoS Biology” Macrophages help activate hair follicle stem cells, affecting hair growth and skin repair.
126 citations
,
January 2009 in “International Journal of Trichology” Oxidative stress contributes to hair graying and loss as we age.
82 citations
,
September 2018 in “Nature Communications” A certain smell receptor in hair follicles can affect hair growth when activated by a synthetic sandalwood scent.