March 2024 in “Asian journal of beauty & cosmetology” Derma Genie™-H001 can help prevent hair loss and promote hair growth.
Red clover and caffeine both promote hair growth, but combining them doesn't enhance the effect.
15 citations
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July 2019 in “Journal of Investigative Dermatology” CBD can either reduce inflammation and not affect hair growth at low levels or inhibit hair growth at high levels.
December 2024 in “Tropical Journal of Natural Product Research” CTUMP's Herb shampoo promotes faster and denser hair growth.
September 1990 in “Journal of Dermatological Science” 
July 2025 in “Biotechnology and Bioprocess Engineering” Spirulina extract may effectively promote hair growth and reduce inflammation, offering a natural alternative for hair loss treatment.
19 citations
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October 1994 in “The Journal of Clinical Endocrinology and Metabolism” 
14 citations
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April 2021 in “Heliyon” Pomegranate leaf extract may help with hair growth, dandruff, and lice.
11 citations
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May 1990 in “Journal of Dermatological Science” Diazoxide applied to the skin can increase hair growth without harmful side effects.
8 citations
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August 2020 in “Domestic Animal Endocrinology” Melatonin improved cashmere production in goats during the first cycle but had no lasting effects on the next cycle.
8 citations
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May 1987 in “Journal of The American Academy of Dermatology” UV light does not significantly affect minoxidil's ability to treat male pattern baldness.
January 2014 in “프로그램북(구 초록집)” Certain electrical settings can boost hair growth.
1 citations
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August 2014 in “OhioLink ETD Center (Ohio Library and Information Network)” Alkylated keratin from human hair can help deliver growth factors for bone healing.
2 citations
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June 2013 in “Herba Polonica” The extract from Elephantopus scaber Linn. might help with hair growth in rats.
October 2014 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Adding dalteparin and protamine microparticles to platelet-rich plasma can boost hair growth more than using platelet-rich plasma alone.
October 2009 in “추계총회 및 학술대회” Natural Agiyeo Hair Cleaner may help hair grow in people with pattern baldness.
October 2021 in “QJM: An International Journal of Medicine” PRP injections may help treat hair loss.
September 2008 in “Kitasato medical journal” 
1 citations
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November 2019 in “The Korea Journal of Herbology” The herbal mixture RAA promotes hair growth and could be an alternative treatment for hair loss.
May 2009 in “고려인삼학회 학술대회” 128 citations
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December 2018 in “Archives of Agronomy and Soil Science” Mycorrhizal fungi help trifoliate orange plants grow better roots and adapt to drought by changing hormone levels.
49 citations
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January 2009 in “The Journal of Clinical Endocrinology & Metabolism” DHEA treatment helps grow pubic hair and boosts mood in girls with adrenal issues.
9 citations
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October 1982 in “PubMed” 3 citations
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December 2014 in “Daehan miyong hakoeji” 3 citations
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January 2010 
1 citations
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January 2002 in “The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology” Some plant extracts may help hair grow.
1 citations
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January 1972 in “PubMed” 
June 2023 in “Clinical and Experimental Dermatology” Gender-affirming hormone therapy changes hair growth in transgender people, with feminizing therapy reducing hair and masculinizing therapy increasing it, but sometimes additional treatment is needed.
December 2017 in “International Journal of Current Research in Biosciences and Plant Biology” Nutrients and hormones affect root hair growth, but more research is needed to understand the genetic mechanisms.