3 citations,
November 2022 in “Molecules/Molecules online/Molecules annual” The substances improved hair regrowth and protected hair cells in humans and mice.
January 2018 in “Open access journal of pharmaceutical research” Biofield Energy Healing may increase hair growth by enhancing cell proliferation.
Avicennia marina extract and avicequinone C can potentially promote hair growth and treat hair loss by interfering with hair loss mechanisms and boosting growth factors.
April 2023 in “Research Square (Research Square)” Exosomes protect ear hair cells from damage by controlling cell waste removal, potentially helping treat hearing loss.
14 citations,
March 2019 in “Journal of Cosmetic Dermatology” Activated platelet-rich plasma helps hair growth by boosting growth factors and cell growth pathways in hair cells.
7 citations,
January 2022 in “Molecules” Tectoridin helps human hair cells grow and makes mouse hair longer, suggesting it could treat hair loss.
7 citations,
January 2019 in “Annals of dermatology/Annals of Dermatology” Synthetic ceramides may help hair growth by boosting cell growth in hair follicles.
3 citations,
October 2021 in “Neuroscience Letters” 
2 citations,
April 2017 in “Molecular Medicine Reports” Blocking autophagy increases survival of inner ear hair cells exposed to gentamicin.
CaBP1 and CaBP2 are important for continuous hearing by preventing inactivation of calcium currents in ear cells, with CaBP2 also able to restore hearing when reintroduced.
April 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” 
11 citations,
January 2011 in “Developmental neurobiology” Ptprq has multiple forms that change during inner ear development.
23 citations,
November 2015 in “Phytotherapy Research” Certain herbal compounds, especially from bitter melon, can inhibit cancer growth and promote hair growth by blocking PAK1.
2 citations,
January 2023 in “BMC plant biology” Scientists found new genetic areas that affect how rice root hairs grow and develop.
February 2023 in “Pharmaceutics” 
384 citations,
June 2005 in “Genes & development” β-catenin is essential for stem cell activation and proliferation in hair follicles.
106 citations,
February 2014 in “eLife” Lanceolate complexes in mouse hair follicles are essential for touch and depend on specific cells for maintenance and regeneration.
105 citations,
October 2017 in “Stem cells” Wnt signaling is crucial for skin development and hair growth.
51 citations,
February 2009 in “Journal of dermatological science” Pitx2 helps outer root sheath cells differentiate but can't start hair growth on its own.
45 citations,
August 2018 in “Stem Cells International” Stem cells, especially from fat tissue and Wharton's jelly, can potentially regenerate hair follicles and treat hair loss, but more research is needed to perfect the treatment.
44 citations,
April 2017 in “Genes & development” Scientists found cells in hair that are key for growth and color.
43 citations,
August 2008 in “Regenerative Medicine” Scientists created early-stage hairs from mouse cells that grew into normal, pigmented hair when implanted into other mice.
31 citations,
July 2015 in “Clinical, Cosmetic and Investigational Dermatology” Hair restoration surgery effectively treats hair loss with natural-looking results, using techniques like stem cells and platelet-rich plasma.
27 citations,
September 2018 in “Nanomedicine: Nanotechnology, Biology and Medicine” Further research is needed to improve hair regeneration using stem cells and nanomaterials.
24 citations,
June 2018 in “PubMed” Serenoa repens extract helps regrow hair and repair hair loss by activating certain cell growth pathways.
24 citations,
July 2018 in “Stem cells” Runx1 controls fat-related genes important for normal and cancer cell growth, affecting skin and hair cell behavior.
23 citations,
June 2012 in “Molecular Biology Reports” VEGF stimulates hair cell growth and increases growth receptor levels through a specific signaling pathway.
22 citations,
August 2017 in “Stem cells and cloning” Stem cell technologies and regenerative medicine, including platelet-rich plasma, show promise for hair restoration in treating hair loss, but more research is needed.
13 citations,
June 2020 in “BMC genomics” A specific microRNA, chi-miR-30b-5p, slows down the growth of hair-related cells by affecting the CaMKIIδ gene in cashmere goats.
12 citations,
November 2014 in “PLOS Computational Biology” The study concluded that hair growth in mice is regulated by a stable interaction between skin cell types, and disrupting this can cause hair loss.