19 citations
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January 1997 in “Endocrinology” Testosterone can slow hair growth in adult monkeys, but a blocker called RU 58841 can counteract this and potentially help hair regrow.
October 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Thymic peptides can either promote or inhibit human hair growth.
7 citations
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January 2019 in “Pharmaceutical Biology” Eclipta prostrata helps hair growth and maintains the growth phase by affecting certain growth factors.
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March 2012 in “Journal of Investigative Dermatology” Some thymic peptides can increase human hair growth, while others may inhibit it.
1 citations
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May 2024 in “Tạp chí Nghiên cứu Y học” Eclipta prostrata extract significantly promotes hair growth in rats.
19 citations
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July 2004 in “Australasian Journal of Dermatology” Her hair grew back normally after she stopped rubbing it.
10 citations
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February 2013 in “British Journal of Dermatology” Thyrotropin-releasing hormone may help control skin and hair growth and could aid in treating related disorders.
April 2017 in “Journal of Investigative Dermatology” A virus protein can activate a pathway that may lead to abnormal hair follicle development.
55 citations
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February 1975 in “Journal of Cutaneous Pathology” Dermal cell activity increases during hair growth in rats.
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October 1958 in “PubMed”
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January 2022 in “Molecules” Tectoridin helps human hair cells grow and makes mouse hair longer, suggesting it could treat hair loss.
68 citations
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March 1965 in “The BMJ” Hormones and genetics affect hair growth and patterns, with some changes reversible and others not.
25 citations
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December 1991 in “The Journal of Dermatology” Cyclosporin A promotes hair growth in young nude mice.
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January 1997 in “Endocrinology” Testosterone can slow down hair growth when combined with certain cells from bald scalps, and this effect can be blocked by an androgen receptor blocker.
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July 2020 in “Cell Proliferation” Epiregulin can help hair grow and may be useful for treating hair loss.
31 citations
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September 1996 in “Differentiation” The upper dermal sheath can regenerate hair in rats.
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.
66 citations
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August 2001 in “Experimental Dermatology” Human hair follicle cells can grow hair when put into mouse skin if they stay in contact with mouse cells.
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May 1986 in “Clinics in endocrinology and metabolism” Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
4 citations
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June 2020 in “British Journal of Pharmacology” Activating TRPV4 in skin cells helps regrow hair in mice, possibly offering a treatment for hair loss.
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June 2024 in “Developmental Cell” Activating TRPV1 can boost hair growth by involving neurons, macrophages, and fibroblasts.
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July 1958 in “Journal of Endocrinology” Cortisone suppresses hair regrowth, especially undercoat hair, while adrenalectomy affects hair growth differently in rabbits and rats.
157 citations
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April 1994 in “Clinical endocrinology” Androgens can cause hair growth in some areas and hair loss on the scalp.
4 citations
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March 2007 in “British Journal of Dermatology” Gefitinib therapy can cause unusual hair growth on the nose.
26 citations
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December 2020 in “Genes” A combination of IGF-1 and EGF promotes hair growth in Angora rabbits.
26 citations
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March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
38 citations
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August 1973 in “Journal of Investigative Dermatology” 16 citations
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January 1998 in “Dermatology” Androgens may worsen a natural hair resting phase, possibly leading to hair loss.
April 2018 in “Journal of Investigative Dermatology” Arrector pili muscle regulates hair follicle stem cells, DNA methylation needed for hair cycling, and Wnt/B-catenin signaling starts hair growth.
20 citations
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January 1979 in “Journal of Experimental Zoology” Plucking hair speeds up the next hair growth, but hormones can change this timing.