April 2026 in “Frontiers in Cell and Developmental Biology” Exosomes from stem cells can rejuvenate the scalp and improve hair growth.
March 2025 in “Plastic & Reconstructive Surgery Global Open” Human Platelet Extract hair serum improves hair health and growth safely.
A woman regrew her hair after receiving injections of special cell-derived vesicles.
November 2022 in “Journal of Investigative Dermatology” Targeting inflammation can improve scalp and hair health.
September 2021 in “Han'gug mi'saengmul saengmyeong gong haghoeji/Han-guk misaengmul saengmyeong gonghak hoeji” Tetrathelmis tetrathele extract may help prevent hair loss and improve scalp health.
September 2019 in “Journal of Investigative Dermatology” Botanical extracts from peas and chia seeds improved scalp health and protected hair from pollution.
January 2003 in “Zhongguo linchuang jiepouxue zazhi” Human hair keratin may help repair injured spinal cord tissue in rats.
83 citations
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April 1999 in “Dermatologic Surgery” The research found that for a typical hair density, about 11 square centimeters of donor scalp is needed to get 800 hair grafts for transplantation.
49 citations
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March 2004 in “Journal of Investigative Dermatology” The hHa7 gene is regulated by androgens in certain body hair, not scalp hair.
23 citations
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May 2005 in “British Journal of Cancer” Plucked human hair can be used to study drug effects on certain cell markers.
13 citations
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June 2007 in “Journal of Dermatological Science” Researchers created a cell line to study hair growth and found specific genes affected by dihydrotestosterone.
October 2025 in “Clinical Cosmetic and Investigational Dermatology” SP treatment improves hair health and moisture retention better than water treatment.
Melatonin may protect hair follicle stem cells from damage caused by chemotherapy.
107 citations
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December 2013 in “International Journal of Dermatology” The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.
November 2024 in “International Journal of Cosmetic Science” Botanical extracts can improve scalp health by reducing oxidative stress.
17 citations
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June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Mutations in hKAP1 genes may cause hereditary hair disorders.
8 citations
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April 2023 in “Cureus” Stem cells could be a better treatment for hair loss by reactivating dormant hair follicles.
July 2022 in “Journal of Investigative Dermatology” Substance P may contribute to hair loss by increasing oxidative stress and mitochondrial activity in hair follicles.
51 citations
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January 1989 in “Journal of Investigative Dermatology” Men with male-pattern baldness have more androgen receptors in their scalp's oil glands, which may contribute to hair loss.
February 2023 in “Journal of Drugs in Dermatology” Melatonin may help improve hair growth in people with certain types of hair loss.
June 2020 in “Journal of Investigative Dermatology” Red clover extract-based scalp treatments significantly improved hair volume and reduced hair loss and damage.
March 1998 in “Journal of dermatological science” Protease Nexin-1 is found in human hair growth cells and is affected by male hormones.
205 citations
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March 2012 in “Science Translational Medicine” PGD2 stops hair growth and is higher in bald men with AGA.
159 citations
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December 2007 in “American Journal of Pathology” Stress-related substance P may lead to hair loss and negatively affect hair growth.
59 citations
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February 1998 in “Chemico-Biological Interactions” Minoxidil breakdown varies by enzymes, affecting hair loss treatment effectiveness.
30 citations
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May 2020 in “Forensic Science International Genetics” The method improved hair analysis for better forensic identification.
13 citations
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December 1991 in “Annals of the New York Academy of Sciences” Researchers created a lab model to study human hair growth, showing it can grow and self-regulate outside the body.
4 citations
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March 2008 in “Korean Journal of Chemical Engineering” Mesenchymal cells can significantly boost human hair growth and longevity.
June 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” ILC1-like cells can cause alopecia areata by attacking hair follicles.
6 citations
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July 2018 in “Advances in Clinical and Experimental Medicine” Different body parts have varying levels of certain hair follicle markers.