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.
July 2021 in “PARIPEX INDIAN JOURNAL OF RESEARCH” Knuckle darkening can be an early sign of vitamin B12 deficiency.
March 2022 in “IP Indian journal of clinical and experimental dermatology” Low ferritin and cobalamin levels are better indicators of chronic hair loss in reproductive-age women than hemoglobin levels.
5 citations
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August 2015 in “Sultan Qaboos University medical journal” Vitamin B12 deficiency can cause skin darkening and other symptoms, which improve with B12 supplements.
25 citations
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December 2005 in “Molecular Genetics and Metabolism” Taking riboflavin and eating less lysine can help some people with a specific genetic disorder avoid brain damage.
April 2019 in “Journal of the Endocrine Society” An over-the-counter vitamin/mineral supplement improved hair loss and blood sugar control in a woman with non-classic 11-hydroxylase deficiency.
April 2024 in “International Journal of Advanced Research” Vitamin B12 deficiency is linked to hair loss and skin pigmentation changes.
14 citations
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November 2015 in “Annals of the New York Academy of Sciences” Changing the diet of mice lacking the enzyme CBS can affect symptoms related to the genetic condition.
May 2024 in “Journal of ayurveda and integrated medical sciences” Amra Beej Majja Churna may help improve Vitamin B12 levels and symptoms in vegans.
1 citations
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December 2019 in “World rabbit science” High doses of cobalt stopped hair growth in rabbits.
March 1993 in “Neuroscience letters” Biotin is important for metabolism, with specific daily intake recommendations, and deficiency can cause health problems.
126 citations
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November 1987 in “The Journal of Pediatrics” Selenium deficiency can cause skin and hair color loss, muscle weakness, and blood cell changes, but these improve with selenium supplements.
32 citations
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July 2018 in “Scientific Reports” Essential-oils-cobalt improves goat growth and product quality.
11 citations
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November 1948 in “Journal of Dairy Science” Calves need enough riboflavin for healthy growth and development.
October 2019 in “Turkderm” Patients with pernio have lower vitamin B12 and ferritin levels than healthy people.
July 2025 in “JAAD Case Reports”
8 citations
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January 2007 in “Hair transplant forum international” Vitamin B12 improves the health and growth of hair micrografts.
57 citations
,
February 2018 in “Journal of the American Academy of Dermatology” Biotin supplements are not proven to improve hair or nails and may interfere with medical tests.
9 citations
,
September 2019 in “Journal of clinical sleep medicine” Vitamin B12 deficiency can rarely cause excessive daytime sleepiness.
January 2021 in “Scandinavian journal of clinical and laboratory investigation” The document describes a way to measure biotin in blood to prevent wrong test results in hormone level testing.
28 citations
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November 2013 in “The FASEB journal” Mice with CBS deficiency are healthier on a low-methionine diet.
1 citations
,
February 2022 in “Journal of the American Academy of Dermatology” Taking biotin supplements can be risky and often lacks evidence of effectiveness for skin, hair, and nail issues.
4 citations
,
October 2024 in “International Journal of Molecular Sciences” GCN reduces lung inflammation and damage from air pollution in mice.
Taking too much biotin can mess up blood test results, which might lead to wrong diagnoses and treatments.
research Coda
November 2018 in “Princeton University Press eBooks” Vitamin C deficiency harms both the body and brain, affecting behavior.
January 2018 in “Journal of Crohn s and Colitis” High-dose intravenous iron therapy doesn't interfere with treatment improvements in IBD patients with iron deficiency anemia.
1 citations
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September 2007 in “Neuromuscular disorders” The treatment with valproate, acetylcarnitine, folic acid, and vitamin B12 may improve muscle strength in children with SMA without significant side effects.
10 citations
,
January 1992 in “Screening” Newborn screening for biotinidase deficiency is effective in preventing severe complications.
66 citations
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November 1997 in “Nutrition” One-third of patients on home nutrition had micronutrient deficiencies, with iron deficiency being most common, but serious issues were rare.
2 citations
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October 2016 in “Nutrition in clinical practice” Vitamin B12 deficiency can cause facial dark spots that go away with treatment.