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.
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.
88 citations
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May 2005 in “Journal of Dermatological Science” Versican, a protein, is less present in thinning hair follicles and this decrease might contribute to common hair loss in men.
18 citations
,
January 2007 in “Pharmaceutical Biology” Citrullus colocynthis extract is effective for hair growth, comparable to minoxidil.
13 citations
,
June 2020 in “International Journal of Molecular Sciences” HNG helps hair grow by keeping hair in the growth phase longer.
9 citations
,
January 2009 in “International Journal of PharmTech Research” The polyherbal oil with Eclipta alba, Hibiscus rosa sinensis, and Nardostachys jatamansi was found to be highly effective in promoting hair growth, better than minoxidil.
January 2025 in “MEDS Public Health and Preventive Medicine” Spermidine supplements can help extend the hair growth phase and may be useful for treating hair loss.
April 2017 in “Journal of Investigative Dermatology” Scientists created a tiny, 3D model of a hair follicle that grows and acts like a real one.
159 citations
,
October 2015 in “Science Advances” Blocking JAK-STAT signaling can lead to hair growth.
53 citations
,
April 1985 in “Developmental Biology” Fibronectin and other basement membrane components increase during hair growth and decrease during rest.
42 citations
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March 2014 in “European Journal of Pharmacology” Ginsenoside F2 from ginseng may increase hair growth better than standard treatments by affecting cell growth signals.
18 citations
,
November 2014 in “Journal of Agricultural and Food Chemistry” Brazilian propolis was found to speed up hair growth in mice by increasing the growth of skin cells that form hair.
1 citations
,
January 1997 in “Journal of Investigative Dermatology” RU58841, an androgen receptor blocker, significantly increased hair density, thickness, and length in monkeys when applied topically daily for several months.
August 2023 in “Journal of controlled release” STAR particles can improve the effectiveness of topical hair growth treatments without causing skin irritation.
April 2017 in “Journal of Investigative Dermatology” Blocking JAK-STAT5 signaling in mice leads to hair growth.
September 2004 in “Experimental Dermatology” Stress increases nerve growth factor, causing hair loss in mice.
January 2007 in “Strait Pharmaceutical Journal” Water-soluble minoxidil effectively promoted hair growth in mice.
Muscarinic acetylcholine receptors help regulate and promote hair growth.
February 2026 in “International Journal of Molecular Sciences” Muscarinic acetylcholine receptors in skin cells help regulate and promote hair growth.
18 citations
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June 1992 in “Acta Histochemica” Human hair follicles have a unique cell distribution and differentiation pattern during growth.
13 citations
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January 2021 in “Histochemistry and Cell Biology” Cholesterol transport in hair follicles decreases from growth to regression phase.
8 citations
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April 2014 in “Anti-Cancer Drugs” A hormone linked to collagen helps hair grow back in mice after chemotherapy, and may also prevent bone loss.
13 citations
,
July 2015 in “Archives of dermatological research” N1-methylspermidine helps hair growth and reduces inflammation in hair follicles.
February 2026 in “ACS Applied Materials & Interfaces” Carbon dots from Cinnamomum burmannii leaves can promote hair growth and regeneration.
58 citations
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October 2016 in “Journal of Investigative Dermatology” Activating Nrf2 protects human hair follicles from oxidative stress and helps prevent hair growth inhibition.
53 citations
,
January 2009 in “Journal of Investigative Dermatology” UVB radiation harms hair growth and health, causing cell death and other changes in human hair follicles.
February 2024 in “Advanced Materials” OG6, a sugar-based material, can stimulate hair growth.
A protein called sFRP4 can partly inhibit hair growth.
8 citations
,
October 2017 in “Dermatology practical & conceptual” A spermidine-based supplement may help hair grow longer by keeping it in the growth phase.
7 citations
,
October 1988 in “Clinics in Dermatology” Minoxidil can promote hair growth in hairless mice.