29 citations,
March 2010 in “Journal of Dermatological Science” Wnt3a activates certain genes in hair follicle cells, including a newly discovered one, EP2, which may affect hair growth.
11 citations,
November 2021 in “Clinical, Cosmetic and Investigational Dermatology” Resveratrol may help hair grow, but more research is needed.
8 citations,
September 2017 in “Scientific Reports” MAD2B slows down the growth of skin cells that are important for hair development by interacting with TCF4.
4 citations,
April 2013 in “Stem cell discovery” 
3 citations,
September 2022 in “Molecules” Camellia seed cake extract may help hair growth by blocking the hair loss effects of a hormone called DHT.
Avicennia Marina extract and avicequinone C can reduce hair loss hormone production and increase hair growth factors, suggesting they could be used to treat androgenic alopecia.
190 citations,
October 2002 in “The FASEB journal” Androgens may cause hair loss by increasing TGF-beta1 from scalp cells, which inhibits hair cell growth.
63 citations,
November 1999 in “British journal of dermatology/British journal of dermatology, Supplement” Hair sensitivity to androgens is partly controlled by specific enzyme expressions in different hair areas.
14 citations,
June 2021 in “Journal of dermatological science” Argan press cake extract might help grow hair and protect hair cells from damage and inflammation.
7 citations,
January 2022 in “Scientific Reports” Acanthus ebracteatus Vahl. extract and verbascoside may help prevent hair loss and promote hair growth due to their anti-inflammatory properties and ability to protect against cell death.
101 citations,
July 1998 in “Journal of Investigative Dermatology” UVB exposure in human skin causes macrophages to produce more IL-10 and less IL-12, leading to immunosuppression.
21 citations,
November 2015 in “Phytomedicine” 
November 2022 in “Journal of Investigative Dermatology” Aging skin cells change their lipid profiles due to stress, affecting skin health.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Silybum marianum extract, Manganese PCA, and Lespedeza capitata extract may help with hair growth and anchorage, potentially aiding in hair loss treatment.
January 2007 in “Linchuang pifuke zazhi” The study investigated the effects of licorice on VEGF protein synthesis and mRNA expression in human dermal papilla cells (DPCs). DPCs were treated with various concentrations of licorice for 72 hours, and results showed a significant increase in both VEGF protein levels and mRNA expression compared to controls. The findings suggested that licorice could stimulate VEGF production in DPCs, potentially playing a crucial role in promoting hair growth.
November 2022 in “Journal of Investigative Dermatology” Low oxygen levels affect the behavior of certain proteins in human skin cells.
22 citations,
December 1991 in “PubMed” 7 citations,
February 2009 in “Cell and tissue biology” 3 citations,
November 2022 in “Molecules/Molecules online/Molecules annual” The substances improved hair regrowth and protected hair cells in humans and mice.
A natural compound called VB-1 can help promote hair growth by boosting a specific cell signal in human skin cells.
33 citations,
September 2016 in “British journal of dermatology/British journal of dermatology, Supplement” Human hair follicle dermal cells can effectively replace other cells in engineered skin.
5 citations,
October 2021 in “PubMed” Exosomes from human fat stem cells can potentially enhance hair growth and survival, providing a new possible treatment for hair loss.
46 citations,
January 2020 in “Theranostics” Injecting a special gel with human protein particles can help hair grow.
1 citations,
April 2017 in “Journal of Investigative Dermatology” CCL5 is important for the hair growth potential of human dermal papilla cells.
78 citations,
October 2012 in “Biomaterials” Larger spheroids improve hair growth, but size doesn't guarantee thicker hair.
64 citations,
January 2013 in “The journal of investigative dermatology/Journal of investigative dermatology” Human stem cells can help form hair follicles in mice.
48 citations,
June 2013 in “Journal of Dermatological Science” Valproic acid may help hair grow and could be a safe treatment for hair loss.
43 citations,
September 2017 in “Lasers in Surgery and Medicine” LED light therapy may help hair growth by activating certain cell pathways.
34 citations,
September 2020 in “Clinical, cosmetic and investigational dermatology” Hyaluronic acid increases collagen synthesis safely, while poly-L-lactic acid may cause complications by affecting fibroblasts.