2 citations
,
  August 2020   in “International Journal of Cosmetic Science”    Lindera strychnifolia root extract may help balance scalp bacteria and potentially reduce hair loss.  
               134 citations
,
  July 2020   in “Experimental dermatology”    Hair follicles are normally protected from the immune system, but when this protection fails, it can cause hair loss in alopecia areata.  
               40 citations
,
  September 2019   in “World journal of clinical cases”    An elderly man's hair grew back after a treatment that transferred healthy gut bacteria.  
     
           9 citations
,
  June 2019   in “Mycopathologia”    Malassezia yeast linked to hair loss; ketoconazole helps treat it.  
     
           26 citations
,
  May 2019   in “PLOS ONE”    Hair loss patients have different microbes in hair follicles, possibly affecting hair loss.  
               48 citations
,
  April 2019   in “PloS one”    Alopecia areata patients have more Propionibacterium acnes and less Staphylococcus epidermidis on their scalps.  
     
           134 citations
,
  December 2018   in “Dermatology and Therapy”    Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.  
     
           65 citations
,
  October 2018   in “Frontiers in cellular and infection microbiology”    Certain bacteria and fungi are linked to healthy scalps and dandruff, suggesting that the scalp's microbial balance affects its health.  
     
           10 citations
,
  July 2018   in “Our Dermatology Online”    Some vitamins and minerals are important for preventing hair loss, but treating hair loss with them without a known deficiency is not proven effective.  
     
           37 citations
,
  June 2018   in “Clinical and Experimental Medicine”    People with alopecia areata often have lower vitamin D levels and more inflammation, suggesting vitamin D might be involved in the condition.  
               48 citations
,
  May 2018   in “Expert Opinion on Therapeutic Targets”    Gut health may influence Alopecia Areata, suggesting new treatments.  
               48 citations
,
  May 2018   in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology”    People with alopecia areata often have lower vitamin D levels and are more likely to be deficient in it.  
               51 citations
,
  December 2017   in “Skin Appendage Disorders”    Stress may trigger hair loss by affecting immune protection in hair follicles.  
     
           29 citations
,
  December 2017   in “International Journal of Dermatology”    People with alopecia areata often have lower vitamin D levels, which are linked to more severe and longer-lasting hair loss, but vitamin D receptor levels in the skin don't show the same pattern and don't predict treatment success.  
     
           63 citations
,
  May 2017   in “American Journal of Clinical Dermatology”    People with alopecia areata often have lower levels of vitamin D, zinc, and folate, but more research is needed to understand if supplements can help treat it.  
               28 citations
,
  April 2017   in “Journal of cosmetic dermatology”    Low vitamin D can worsen pediatric alopecia areata.  
               10 citations
,
  April 2017   in “Journal of Investigative Dermatology”        
           192 citations
,
  March 2017   in “Cell host & microbe”    Hair follicle development and microbes help regulatory T cells gather in newborn skin.  
               39 citations
,
  January 2017   in “Dermatologic Therapy”    Topical calcipotriol may help treat alopecia areata, especially in those with low vitamin D.  
     
           6 citations
,
  January 2016   in “Annals of Dermatology”    Human hair contains more glycosaminoglycans in children than adults, and these compounds decrease with age, possibly affecting hair thickness.  
     
           62 citations
,
  June 2015   in “The Journal of Dermatology”    People with alopecia areata have more Th17 cells and fewer Treg cells, which may be key to the condition's development.  
               701 citations
,
  August 2014   in “Nature medicine”    Alopecia areata can be reversed by JAK inhibitors, promoting hair regrowth.  
     
           29 citations
,
  June 2013   in “Journal of the Saudi Society of Dermatology & Dermatologic Surgery”    Alopecia areata is an autoimmune hair loss condition treated with corticosteroids, and histologic confirmation is the best diagnosis method.  
     
           51 citations
,
  January 2012   in “Annals of dermatology/Annals of Dermatology”    A boy with alopecia regrew hair using a vitamin D cream after other treatments failed.  
               717 citations
,
  June 2010   in “Nature”    Alopecia areata involves both innate and adaptive immunity, with specific genes linked to the disease.  
               253 citations
,
  December 2007   in “Journal of Investigative Dermatology”    Hair follicles prevent NK cell attacks to avoid hair loss.  
               22 citations
,
  March 2007   in “European journal of pediatrics”    Certain types of mucopolysaccharidoses cause significant hair abnormalities.  
               143 citations
,
  January 2004   in “Journal of Investigative Dermatology Symposium Proceedings”    Alopecia areata is an autoimmune disease causing hair loss, treatable with immune-modulating drugs, and linked to genetics.