17 citations
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December 2001 in “Journal of Investigative Dermatology” The osteopontin gene is active in a specific part of rat hair follicles during a certain hair growth phase and might affect hair cycle and diseases.
3 citations
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August 2013 in “Stem cells” Certain inhibitors applied to the skin can promote hair growth by maintaining a key hair growth signal.
A hair growth ointment improved hair length in a family with a genetic hair growth condition.
September 2022 in “Institutional Repositories DataBase (IRDB)” 3D-oxy exosomes may significantly boost hair growth, offering new treatment options for hair loss.
Oregano extract can promote hair growth and has antioxidant benefits without being toxic.
1 citations
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January 2008 in “Aesthetic dermatology” 82 citations
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November 1959 in “Annals of the New York Academy of Sciences” 
January 2020 in “Journal of Pharmacognosy and Phytochemistry” The VCO-based herbal hair tonic is effective, safe for hair loss treatment, and can be mass-produced.
July 2024 in “Journal of Cosmetic Dermatology” Hydrophilic melanin may help hair grow by improving blood flow and regeneration.
October 1966 in “Archives of Dermatology” A 19-year-old female with alopecia universalis experienced total hair loss, and previous treatments were ineffective.
August 2024 in “Pharmaceuticals” Oral sturgeon oil promotes hair growth and improves gut health.
November 2025 in “Probiotics and Antimicrobial Proteins” 
1 citations
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November 2008 Yonnyuniksoogobon-dan taken orally promotes hair growth by affecting growth factors in hair roots.
1 citations
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May 2013 in “Journal of the Egyptian Women's Dermatologic Society (Print)” Women with idiopathic hirsutism and PCOS have higher RBP4 levels, and PCOS is linked to greater insulin resistance; weight management may help both conditions.
9 citations
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December 2021 in “Molecules” Certain compounds in three Polynesian plants may help hair growth.
5 citations
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January 2020 in “The mental health clinician” Vitamin D supplements may reduce hair-pulling in people with Trichotillomania.
November 2011 in “Journal watch” Botox might help hair grow, but more research is needed.
October 2024 in “Frontiers in Veterinary Science” FKBP10 and FBN2 are key proteins for hair growth in cashmere goats.
January 2025 in “SSRN Electronic Journal” 50 citations
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October 2007 in “Archives of Dermatological Research” 66 citations
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January 1987 in “Journal of Investigative Dermatology” Coal tar shampoo increases enzyme activity in hair follicles, enhancing carcinogen binding to DNA.
38 citations
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September 2017 in “Journal of zoo and wildlife medicine” Oclacitinib maleate successfully treated alopecia in Andean bears.
140 citations
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April 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” The enzyme 25 Hydroxyvitamin D 1 α-Hydroxylase is essential for healthy skin and recovery after skin damage.
11 citations
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October 2017 in “International Journal of Molecular Sciences” A new drug delivery system using oil body-bound oleosin-rhFGF-10 improves wound healing and hair growth in mice.
4 citations
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May 2018 in “Türk pediatri arşivi : İstanbul çocuk kliniği dergisi” Oral retinoic acid effectively treated collodion baby, with hair loss as the main side effect.
Baricitinib helped treat a man's beard hair loss when steroids didn't work.
March 2023 in “Research journal of pharmacy and technology” The herbal hair oil helped hair grow in mice.
18 citations
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August 2012 in “Clinical and Experimental Dermatology” Liposomal IGF-1 safely and effectively treats hair loss in hamsters.
February 2024 in “Digital Library of Theses and Dissertations (Universidade de São Paulo)” Argan, avocado, and coconut oils are absorbed into hair, improving hydration and protection.
1 citations
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June 2022 in “Tidsskrift for Den norske legeforening” A young boy's uncombable hair is due to a rare genetic condition that usually improves over time.