26 citations
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February 2003 in “The journal of investigative dermatology/Journal of investigative dermatology” An enzyme other than TNAP might be responsible for vitamin B-6 metabolism in the skin.
11 citations
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October 1941 in “Experimental Biology and Medicine” PABA helps prevent gray hair and hair loss in mice.
September 2019 in “Journal of Investigative Dermatology” PCE-DP brightens skin and promotes hair growth by enhancing cell growth and reducing melanin uptake.
March 1993 in “Neuroscience letters” Biotin is important for metabolism, with specific daily intake recommendations, and deficiency can cause health problems.
7 citations
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January 2001 in “PubMed” Vitamin B6 reduced hair loss in women with diffuse alopecia, but calcium pantothenate had no clear positive effect.
July 2021 in “PARIPEX INDIAN JOURNAL OF RESEARCH” Knuckle darkening can be an early sign of vitamin B12 deficiency.
2 citations
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November 1961 in “American Journal of Clinical Nutrition”
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 2019 in “Turkderm” Patients with pernio have lower vitamin B12 and ferritin levels than healthy people.
16 citations
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January 2008 in “Acta dermato-venereologica” Vitamin B12 deficiency can cause skin darkening and increased blood vessels, but treatment can improve symptoms.
23 citations
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October 2009 in “Gastroenterology” Vitamin D is crucial for bone health and preventing serious diseases.
1 citations
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September 2022 in “Journal of dermatological science” Certain vitamins and their derivatives can help hair grow longer by activating specific growth signals.
16 citations
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October 1987 in “British journal of dermatology/British journal of dermatology, Supplement” A vitamin D3 compound can reduce skin cell growth.
13 citations
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September 2021 in “Current Issues in Molecular Biology” Dexpanthenol helps human hair follicle cells grow by preventing aging and death, and by supporting growth signals.
November 2022 in “Journal of the Endocrine Society” Correcting vitamin D and progesterone deficiencies can significantly improve hair loss, acne, and BPH symptoms.
January 1994 in “SÖFW. Seifen, Öle, Fette, Wachse” Multiactive ingredients like panthenol and B-vitamins improve hair and skin health.
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.
16 citations
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February 2008 in “PubMed” Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.
22 citations
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August 1940 in “The journal of investigative dermatology/Journal of investigative dermatology” Rats with a pellagra-like skin condition were cured by a vitamin found in yeast, later identified as vitamin B6.
19 citations
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December 1999 in “International Journal of Dermatology” Dihydroxyacetone in self-tanning lotion helped reduce sun-related skin issues in a woman with variegate porphyria.
July 2025 in “JAAD Case Reports”
October 2025 in “International Journal For Multidisciplinary Research” Ayurvedic treatment improved Vitamin B12 levels and symptoms.
13 citations
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February 1951 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Young pigs need 10-20 mg of calcium pantothenate daily to fully recover from pantothenic acid deficiency.
September 2009 in “European journal of paediatric neurology” Biotin supplements did not significantly reduce hair loss in rats on valproic acid.
June 2021 in “Asian Journal of Medical Sciences” Vitamin B12 deficiency can cause reversible skin darkening.
1 citations
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July 2012 in “EFSA Journal” The combination of certain vitamins and pumpkin seed oil has not been proven to maintain normal hair.
7 citations
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August 2013 in “Experimental and Therapeutic Medicine” 1,25-dihydroxyvitamin D3 helps melanocyte precursors from hair follicles grow and produce melanin, aiding vitiligo treatment understanding.
22 citations
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September 2008 in “Brain & development” Biotin supplements increased biotin levels but did not significantly prevent hair loss in rats on valproic acid.
September 1989 in “Neuroscience letters” People need different amounts of biotin based on age, and not getting enough can cause health problems.