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February 2012 in “PubMed” Gp₄G promotes hair growth and improves skin health.
April 2020 in “Trends in Immunotherapy” Combining triamcinolone acetonide and immunotherapy can help regrow hair in some alopecia totalis patients.
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May 2011 in “Gene Therapy” Using polyethylenimine-DNA to deliver the hTERT gene can stimulate hair growth and may be useful in treating hair loss, but there could be potential cancer risks.
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August 2021 in “Journal of the American Academy of Dermatology” The shampoo's ingredients' effect on a hair growth pathway in cells was tested, but the results are not given.
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February 2013 in “British Journal of Dermatology” Thyrotropin-releasing hormone may help control skin and hair growth and could aid in treating related disorders.
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