4 citations
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December 2013 in “Acupuncture and related therapies” N-acetyl-cysteine shows promise in treating various diseases and may improve skin and hair conditions, but more research is needed on dosages and long-term effects.
September 2023 in “International Journal of Trichology” Adipose-derived stem cells may help with hair loss, but more research is needed.
January 2008 in “프로그램북(구 초록집)” 
5 citations
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June 2022 in “Frontiers in veterinary science” Improving how drugs are absorbed through the skin could better treat mange in wombats.
4 citations
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August 2005 in “Clinical Infectious Diseases” The man's symptoms improved after treating his scurvy with high-dose vitamin C.
52 citations
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February 2003 in “Archives of dermatology” 9-cis-retinoic acid showed some effectiveness in treating AIDS-related Kaposi sarcoma but had significant side effects at higher doses.
October 2024 in “Revista Electronica de Veterinaria” Siddha medicine can effectively treat Alopecia areata, leading to significant hair regrowth.
16 citations
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November 2008 in “Journal of the American Academy of Dermatology” Consider necrolytic acral erythema in similar cases and treat with oral zinc sulfate.
75 citations
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March 2009 in “Journal of The American Academy of Dermatology” CCCA is a hair loss type affecting African women, possibly caused by grooming and chemicals, with various treatments and needing more research.
5 citations
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January 2007 Citrullus colocynthis extracts may promote hair growth as effectively as minoxidil.