December 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” The conclusion is that the dermal papilla is crucial for hair follicle regrowth, and hair follicles undergo significant structural changes in addition to cell division during regeneration.
October 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Scientists used a special imaging technique to observe that hair follicle regeneration involves cell division and structural changes, mostly in the lower part of the follicle, and that the dermal papilla at the base is crucial for regrowth.
September 2011 in “Clinical Biochemistry” Certain sugars increase in some layers of the hair follicle during the middle of the healing process in rats, which may help improve healing.
Hair follicle-like structures can form when specific hair cells are mixed and implanted in mice.
3 citations
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September 2021 in “Bulletin of the Korean Chemical Society” Dimeric peptide derivatives could help hair growth and treat hair loss safely.
December 2022 in “Korean journal of medicinal crop science/Han-gug yagyong jagmul hag-hoeji” Natural extracts like ginseng, green tea, shiitake, and aloe vera may help prevent hair loss by protecting hair-related cells.
9 citations
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February 2020 in “Journal of Cosmetic Dermatology” Pulsatilla chinensis compounds may help prevent stress-related hair loss.
22 citations
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July 1990 in “Acta Dermato Venereologica” High levels of testosterone and dihydrotestosterone inhibit hair cell growth, while high levels of estradiol promote it.
May 2024 in “British journal of dermatology/British journal of dermatology, Supplement” Hair follicles in androgenetic alopecia age faster, especially in the front.
Muscarinic acetylcholine receptors help regulate and promote hair growth.
November 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Removing MCPIP1 from myeloid cells in mice leads to hair loss and prevents skin tumors but causes pigmented spots.
December 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” New cells join the hair's dermal papilla during the growth phase, possibly affecting hair thickness.
March 2025 in “Molecules” Kyoh® rocket leaf extract may promote hair growth naturally with fewer side effects.
January 2024 in “Biomaterials Research” 3D-cultured cells in HGC-coated environments improve hair growth and skin integration.
66 citations
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January 2000 in “Hormone Research in Paediatrics” Androgens can both promote and prevent hair growth due to differences in gene expression in hair follicles.
25 citations
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June 2022 in “Developmental cell” Overactivating Hedgehog signaling makes hair follicle cells in mice grow hair faster and create more follicles.
17 citations
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May 2014 in “Naunyn-Schmiedeberg's Archives of Pharmacology” 7-Phloroeckol from brown algae may help hair grow.
Current hair regeneration methods show promise but face challenges in maintaining cell effectiveness and creating the right environment for hair growth.
October 2024 in “SPIRE - Sciences Po Institutional REpository” Glypicans help hair follicle stem cells differentiate by interacting with specific receptors, influencing hair growth.
September 2023 in “Journal of Nutrition and Metabolism” One Ashwagandha extract may help protect cells with its antioxidant properties, while another could promote hair growth.
1 citations
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January 2004 in “Linchuang pifuke zazhi” Substance P helps hair growth by extending the growth phase and affecting certain growth factors.
105 citations
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December 1998 in “Archives of Dermatological Research” Dermal papilla cells mainly drive blood vessel growth in hair follicles.
71 citations
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October 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” HFMs can help study hair growth and test potential hair growth drugs.
57 citations
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August 2002 in “American Journal Of Pathology” Cathepsin L deficiency causes hair and skin issues in mice.
18 citations
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January 1994 in “Skin Pharmacology and Physiology” Human dermal fibroblasts and hair papilla cells help outer root sheath cells grow and develop properly.
7 citations
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October 1992 in “PubMed” Sinus hair follicles in mammals have different nerve fiber types with species-specific patterns, especially in cats.
April 2025 in “Ukrainian Journal of Veterinary and Agricultural Sciences” Adding a water-soluble fatty acid complex to sheep diets improves wool growth by increasing primary hair follicle size and density.
May 2024 in “Regenerative Therapy” Dendrobium officinale polysaccharide helps hair growth by activating the WNT signaling pathway.
January 2024 in “Advanced Science” New microspheres help heal skin wounds and regrow hair without scarring.
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.