December 2021 in “Benha Journal of Applied Sciences” Higher Claudin 3 levels in the blood are linked to more severe alopecia areata.
January 2018 in “한국피부장벽학회지” DHCer levels in hair could be a biomarker for alopecia progression.
June 2025 in “International Journal of Science and Research (IJSR)” Low iron and vitamin D are common in young females with hair loss.
20 citations
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November 1968 in “The Lancet” Potassium levels affect blood sugar and insulin during dialysis, and malnutrition changes children's hair roots.
September 2018 in “BAUST Journal”
2 citations
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January 2018 in “Biology and medicine” High testosterone levels in 20% of the women studied may indicate PCOS, while 80% had low levels with potential health impacts.
June 2025 in “Academic Medical Journal” High homocysteine levels in lupus may increase inflammation and cardiovascular risk.
4 citations
,
April 2023 in “Autoimmunity reviews” High levels of IL6 and CRP, and low levels of vitamin D, might be indicators of alopecia areata.
5 citations
,
January 1976 in “Acta Dermato Venereologica” Sodium and potassium levels in Egyptian scalp hair differ by sex and can aid in legal cases.
13 citations
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May 2012 in “Cutaneous and ocular toxicology” Alopecia areata is not linked to vitamin B12 deficiency.
22 citations
,
August 2016 in “European Eating Disorders Review” Adolescent girls with anorexia nervosa have lower hair cortisol levels than healthy and psychiatric peers.
13 citations
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January 2015 in “International Journal of Trichology” Higher lead and cadmium, and lower zinc and iron levels in the blood might be linked to chronic hair loss in women.
1 citations
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December 2019 Selenium is essential for health, but too much or too little can cause problems; blood selenium levels are a good measure of intake.
2 citations
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December 2015 in “Journal of dermatology research and therapy” People with Chronic Telogen Effluvium mainly have lower iron levels compared to healthy individuals.
December 2023 in “Frontiers in Medicine” Hair samples can reliably monitor tacrolimus levels in kidney transplant patients.
695 citations
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October 2011 in “Cell stem cell” Low oxygen areas help maintain and protect blood stem cells by using a simple sugar breakdown process for energy and managing their activity levels.
April 2025 in “Dermatology Practical & Conceptual” Alopecia areata patients have higher systemic inflammation, even in mild cases.
10 citations
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November 2018 in “Developmental Psychobiology” Hair can effectively measure DHEA and testosterone levels in children.
November 2025 in “Healthcare” Zinc levels don't significantly affect hair loss, so testing for zinc isn't necessary.
November 1986 in “PubMed” Women with androgenetic alopecia have lower SHBG levels.
Hair cortisol content can indicate cortisol exposure and varies with age, puberty, and BMI in youth.
August 2016 in “Annals of International medical and Dental Research” People with different types of hair loss often have lower iron levels in their blood.
29 citations
,
January 2009 in “Gynecological Endocrinology” Women with PCOS have higher levels of certain blood clotting factors, suggesting a greater risk of cardiovascular issues.
August 1987 in “European journal of endocrinology” The T/SHBG ratio may be a useful marker for androgen activity in women with androgenetic alopecia.
January 2019 in “Kocaeli tıp dergisi” People with chronic hair loss may have a higher chance of Vitamin B12 deficiency.
September 2025 in “Pakistan Journal of Science” Diabetics have lower essential element levels, which may contribute to diabetes, and certain plants might help manage it.
May 2013 in “DOAJ (DOAJ: Directory of Open Access Journals)” Women with hair loss have higher free testosterone levels.
November 2025 in “BMC Endocrine Disorders” The TT/DHT ratio may help identify PCOS patients with severe metabolic issues.
19 citations
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April 2018 in “Clinical cardiology” Older men with low levels of a testosterone byproduct had a higher chance of developing an irregular heartbeat.
May 2014 in “Transfusion and Apheresis Science” Multiple plasma donations do not change donors' biochemical parameters.