May 2020 in “Current developments in nutrition” Vitamin A affects the resting phase of hair growth, with both low and high levels increasing the number of hair follicles in this phase.
Crinum asiaticum extract and norgalanthamine may promote hair growth by blocking an enzyme linked to hair loss and a pathway that stops hair growth.
Androgenetic alopecia, or hair loss, is caused by genetic factors and hormones, with different mechanisms in men and women, and can be linked to insulin resistance and polycystic ovary syndrome.
59 citations
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September 2003 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” Epitestosterone may counteract testosterone's effects and has roles in body processes like prostate growth and hair distribution.
28 citations
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March 2020 in “Journal of ethnopharmacology” Ginsenoside Rb1 slows down aging in mice by affecting cell growth, cell death, and metabolism.
136 citations
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March 1998 in “Oncogene” Overexpression of E2F1 can lead to skin tumors and disrupt hair growth.
87 citations
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December 2020 in “Journal of Materials Chemistry B” The nanofiber dressing speeds up wound healing and hair growth while preventing bacterial growth.
80 citations
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April 2006 in “Clinical Interventions in Aging” Minoxidil and Finasteride are effective for male baldness; more research is needed for hair aging treatments.
54 citations
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June 2008 in “Planta Medica” Hinokitiol may help treat hair loss by reducing inflammation and promoting hair growth.
11 citations
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April 2020 in “Life sciences” Pantothenic acid helps mink hair follicles grow by affecting certain cell signals.
April 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” Human umbilical cord stem cell exosomes may help treat hair loss by promoting hair cell growth.
April 2025 in “Materials Today Bio” A new treatment using gold nanoclusters can safely reduce unwanted hair growth.
2 citations
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January 2008 in “Cuadernos de Psiquiatría comunitaria” Vitamin D and its receptor help regulate skin functions like cell growth, immunity, and hair cycle.
41 citations
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October 2008 in “The American journal of pathology” Blocking a specific protein signal can make hair grow on mouse nipples.
30 citations
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October 2020 in “Frontiers in Plant Science” Combined arsenic and low oxygen stress alters root growth to help plants absorb nutrients.
Cyproterone acetate with ethynyl estradiol significantly improved acne and seborrhea in women, but was less effective for hair loss and excessive hair growth.
21 citations
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September 2013 in “Pediatric Dermatology” Growth hormone therapy can improve growth in Netherton syndrome patients with growth hormone deficiency.
185 citations
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June 2011 in “Molecular and cellular endocrinology” Skin cells produce and activate vitamin D, which regulates skin functions and supports hair growth.
61 citations
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January 2011 in “PloS one” Notch signaling is essential for healthy skin and hair follicle maintenance.
59 citations
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August 1998 in “International Journal of Dermatology” Genetics and hormones cause hair loss; finasteride treats it safely.
34 citations
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February 1993 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” Certain 4-azasteroids are effective at blocking the enzyme that processes testosterone in human skin and could help treat acne, excessive hair growth, and male pattern baldness.
19 citations
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May 2014 in “Molecules” Avicequinone C, a compound found in the Avicennia marina plant, can reduce hair loss by inhibiting a hormone linked to androgenic alopecia.
12 citations
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April 2020 in “British Journal of Dermatology” Caffeine may help reduce stress-induced hair loss.
12 citations
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December 1987 in “Cancer Chemotherapy and Pharmacology” Vitamin E in the diet might help protect against hair loss caused by the chemotherapy drug doxorubicin in rabbits.
November 2025 in “Biomolecules” FGF22 helps hair follicle stem cells grow and develop.
sFRP4 partially inhibits hair regeneration, but the study needs clearer data analysis and better explanation of the process.
15 citations
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March 2019 in “Veterinary Dermatology” Three mousse products effectively reduced bacteria on dog hair for at least 10 days.
147 citations
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August 2005 in “The Plant Cell” The TIP1 gene is crucial for normal plant cell growth in Arabidopsis.
Combining minoxidil, finasteride, and growth factors improves hair growth and reduces hair loss.
January 2013 in “Hair transplant forum international” Minoxidil and finasteride are effective for male hair loss; minoxidil also helps female hair loss, with some treatments needing more research.