April 2026 in “European Journal of Medical and Health Research” Women with hair loss had lower IGF-1 levels.
September 2017 in “Hair transplant forum international” Biotin is popular for hair loss, but there's little scientific proof it works.
29 citations
,
December 1989 in “The journal of nutrition/The Journal of nutrition” Mice's intestinal uptake of pantothenic acid is not affected by dietary levels.
21 citations
,
January 2009 in “Indian journal of dermatology, venereology, and leprology” Vitamin B12, folate, ferritin, and iron levels are not linked to alopecia areata.
November 1986 in “PubMed” Women with androgenetic alopecia have lower SHBG levels.
September 2016 in “Journal of the Egyptian Women's Dermatologic Society (Print)” Higher RBP4 levels found in people with two types of hair loss.
1 citations
,
January 2007 in “Journal of Obesity & Metabolic Syndrome” A higher calcium to magnesium ratio in hair is linked to lower insulin sensitivity.
4 citations
,
May 2021 in “Molecules” The hair test for vitamin D could be a useful alternative to blood tests, providing a longer-term vitamin D status, but more research is needed.
July 2016 in “Journal of Dermatology and Cosmetic” Many people with hair loss have low vitamin D levels.
January 2004 in “Weiliang yuansu yu jiankang yanjiu” Diabetics have lower chromium, manganese, and copper, but higher iron in their hair.
September 2021 in “Crop research/Crop Research” Aluminum foil packaging kept the biotin nutrition bar with the least bacteria after 30 days.
July 2025 in “JAAD Case Reports”
6 citations
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June 2011 in “British Journal of Dermatology” People with alopecia areata have higher levels of RBP4 protein and antibodies against it.
7 citations
,
August 2021 in “Open Access Macedonian Journal of Medical Sciences” The VDR gene polymorphism does not affect BDNF levels in autoimmune thyroiditis and hypothyroidism patients.
January 2025 in “The International Journal of Gastroenterology and Hepatology Diseases” Vitamin B12 is crucial for hair and nerve health, and its malabsorption can cause hair loss and nerve damage.
20 citations
,
December 2011 in “Journal of inherited metabolic disease” Valproic acid treatment increases a specific acid in urine by blocking an enzyme, possibly causing skin rash and hair loss.
5 citations
,
June 2024 in “Experimental Dermatology” High beta-hydroxybutyrate levels may worsen hair loss in alopecia areata.
13 citations
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December 2016 in “Egyptian Journal of Basic and Applied Sciences” Alopecia areata patients have lower vitamin D levels than healthy individuals.
October 2025 in “Electronic Theses and Dissertations Repository (University of Pisa)” Baricitinib effectively treated alopecia areata in 73% of patients, with minor metabolic changes and significant changes in inflammatory markers.
Vitamin supplements may not improve hair thickness or density in patients with non-scarring hair loss.
August 2022 in “International Journal of Health Sciences (IJHS)” Low levels of zinc, ferritin, and vitamin B12 are linked to severe hair loss in pregnant women during their last two trimesters.
2 citations
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September 2012 in “Turk Dermatoloji Dergisi” Low levels of ferritin and vitamin B12 are common in women with telogen effluvium, but the link between nutrient deficiencies and the condition is not clear.
October 2019 in “Turkderm” Patients with pernio have lower vitamin B12 and ferritin levels than healthy people.
16 citations
,
January 2017 in “DOAJ (DOAJ: Directory of Open Access Journals)” Low levels of vitamin B12 and ferritin are linked to early hair graying.
4 citations
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January 2011 in “Journal of Cosmetics, Dermatological Sciences and Applications” Vitamin B12 may promote hair growth by affecting certain cell processes.
October 2021 in “International Journal of Research in Dermatology” People with alopecia areata often have low vitamin D levels, which may worsen their hair loss.
October 2024 in “Skin Appendage Disorders” Higher FABP4 levels may indicate more severe alopecia areata.
4 citations
,
August 2021 in “Pediatric dermatology” Biotin, alone or with minoxidil, effectively treats short anagen syndrome.
November 2024 in “SKIN The Journal of Cutaneous Medicine” Baricitinib slightly increased cholesterol levels in alopecia areata patients, but these changes were manageable.
16 citations
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February 2008 in “PubMed” Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.