May 2021 in “Indian journal of forensic medicine and toxicology” This study found that adult female patients with chronic telogen effluvium had significantly lower serum ferritin and vitamin D levels compared to healthy controls, suggesting a potential association with hair loss.
January 2018 in “International journal of medical biochemistry” This study found that female patients with telogen effluvium had significantly lower levels of serum ferritin, folate, and vitamin B12 compared to the control group.
January 2015 in “Iraqi Journal of Hematology” In this study, oral iron replacement therapy showed improvement in hair loss severity for some women with low serum ferritin levels, but not all responded.
This study suggests that raising the lower normal serum ferritin level to 50 ng/mL may improve organ functions even when hemoglobin levels are normal.
January 2012 in “Yearbook of Dermatology and Dermatologic Surgery” No significant difference in iron deficiency between women with or without hair loss.
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October 2011 in “Faṣlnāmah-i bīmārīhā-yi pūst” This study found that serum iron and ferritin levels in patients with alopecia areata did not significantly differ from control subjects, suggesting these factors may not contribute to the condition's etiology.
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January 2009 in “PubMed” This study found that women with serum ferritin levels below or equal to 30 ng/mL have a strong association with an increased risk of diffuse telogen hair loss.
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November 2002 in “British Journal of Dermatology” This study found no direct relationship between low serum ferritin and chronic diffuse telogen hair loss in women, questioning the usefulness of serum ferritin measurement and iron supplementation for managing this condition.
