January 2003 in “Research Portal (King's College London)” Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.
137 citations
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September 2005 in “Proceedings of the National Academy of Sciences of the United States of America” The HR protein helps hair grow by blocking a hair growth inhibitor, aiding in hair follicle regeneration.
54 citations
,
April 2019 in “Journal of cellular physiology” miR-218-5p helps skin and hair growth by targeting SFRP2 and activating a specific signaling pathway.
25 citations
,
April 2015 in “Journal of Investigative Dermatology” GasderminA3 is important for normal hair cycle transitions by controlling Wnt signaling.
19 citations
,
January 2018 in “BioMed Research International” miR-195-5p reduces hair growth ability in cells by blocking a specific growth signal.
2 citations
,
February 2014 in “Animal Biotechnology” The PTGER2 gene is highly active in Cashmere goat skin and its activity changes with the hair growth cycle.
December 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” MicroRNA-205 helps hair grow by changing the stiffness and contraction of hair follicle cells.
April 2013 in “Developmental Cell” Brg1 is crucial for keeping hair follicle stem cells and repairing skin, working with the Sonic Hedgehog pathway to promote hair growth.
2 citations
,
December 2019 in “Textile Research Journal” L-cysteine and ultrasound successfully improved rabbit hair fibers for industrial use.
76 citations
,
April 2013 in “PLoS ONE” Chronic stress can cause hair loss by increasing oxidative stress, but antioxidants may help.
1 citations
,
November 2019 in “The Korea Journal of Herbology” The herbal mixture RAA promotes hair growth and could be an alternative treatment for hair loss.
11 citations
,
February 2018 in “Amino acids” Copper and iron cause keratin damage in hair by converting methionine to homocysteine.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Biotrinine® may be an effective treatment for chronic hair loss.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Aging causes changes in scalp cells that can negatively affect hair health.
1 citations
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October 2017 in “ecancermedicalscience” Breast cancer alters specific molecular structures in hair, which revert after cancer removal.
January 2025 in “Journal of Veterinary Medical Science” Environmental conditions can affect toxic mineral levels and gut bacteria in working dogs.
39 citations
,
May 2014 in “Frontiers in Pharmacology” Special immune cells called Tregs can help prevent lung scarring by blocking a specific growth factor.
38 citations
,
June 2018 in “Plant & cell physiology/Plant and cell physiology” Changing the amount of PLC5 in Arabidopsis affects root growth and drought resistance, with less PLC5 slowing root growth and more PLC5 improving drought tolerance but hindering root hair growth.
March 2021 in “Research Square (Research Square)” The SbbHLH85 protein helps sweet sorghum grow more root hairs but makes the plant more sensitive to salt.
5 citations
,
March 2017 in “Gene” CAP1 decreases the expression of a hair-related protein in young Tan sheep's skin.
567 citations
,
October 2007 in “Clinical and investigative medicine” Hair cortisol can be used to measure long-term stress exposure.
284 citations
,
May 2002 in “Proceedings of the National Academy of Sciences” CRH promotes fat production in skin cells, affecting conditions like acne.
67 citations
,
January 1997 in “Lancet” Hirsutism is when women have too much hair growth, often due to a bit more androgen hormones and sensitive skin.
5 citations
,
June 2008 in “Acta Cirurgica Brasileira” Finasteride causes sperm production decrease in Mesocricetus auratus.
COCs can improve acne but may cause skin issues like cholasma; high estrogen is advised for hair loss concerns.
97 citations
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September 2016 in “Reviews in Endocrine and Metabolic Disorders” The sebaceous gland has more roles than just producing sebum and contributing to acne, and new research could lead to better skin disease treatments.
October 2025 in “Science Advances” IFN-γ production by CD4 T cells is crucial for causing alopecia areata.
February 2025 in “Cosmetics” Blue light therapy is promising for skin and hair conditions but needs more research for widespread use.
November 2022 in “Journal of Investigative Dermatology” The lotion with specific plant extracts effectively increased hair growth and improved hair cycle in subjects after 3 months.
47 citations
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June 2012 in “Genes & Development” A mother's western diet can make her milk toxic, causing inflammation and hair loss in babies.