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    Glossary Vitamin B12

    essential for red blood cell production and neurological health

    Vitamin B12, also known as cobalamin, is a crucial water-soluble vitamin that plays a vital role in red blood cell formation, DNA synthesis, and neurological function. It is naturally found in animal products like meat, fish, and dairy, and deficiencies can lead to anemia and neurological issues.

    Related Terms

    Learn 10 of 26

    1. Vitamin B12
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    3. Vitamin D Vitamin made in the skin from sunlight, also taken as a supplement
    4. Vitamin C
    5. Vitamin B5
    6. Vitamin B6
    7. Vitamin E
    8. vitamin A
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    10. vitamin b2
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    Research 10 of 1000+

    1. Reversible Hyperpigmentation of Skin and Nails With White Hair due to Vitamin B12 Deficiency Archives of Dermatology · 1986 · 77 citations
    2. Serum vitamin B12, folate, ferritin, and iron levels in turkish patients with alopecia areata Indian journal of dermatology, venereology, and leprology · 2009 · 21 citations
    3. Reduced serum vitamin B12 levels during oral cyproterone-acetate and ethinyl-oestradiol therapy in women with diffuse androgen-dependent alopecia Clinical and experimental dermatology · 1990 · 20 citations
    4. Counteraction of Cortisone Inhibition of Body, Hair and Thymus Growth by Vitamin B12 and Aureomycin. Experimental biology and medicine · 1951 · 17 citations
    5. Demographic Characteristics and Association of Serum Vitamin B12, Ferritin and Thyroid Function with Premature Canities in Indian Patients from an Urban Skin Clinic of North India: A Retrospective Analysis of 71 Cases. DOAJ (DOAJ: Directory of Open Access Journals) · 2017 · 16 citations
    6. Reversible cutaneous hyperpigmentation and nails with white hair due to vitamin B12 deficiency. PubMed · 2008 · 16 citations
    7. Skin Hyperpigmentation and Increased Angiogenesis Secondary to Vitamin B12 Deficiency in a Young Vegetarian Woman Acta dermato-venereologica · 2008 · 16 citations
    8. Serum holotranscobalamine, vitamin B12, folic acid and homocysteine levels in alopecia areata patients Cutaneous and ocular toxicology · 2012 · 13 citations
    9. Beneficial Effects of Vitamin B12 and Aureomycin in Rats Given Large Doses of Cortisone. Experimental biology and medicine · 1952 · 12 citations
    10. Reversible hyperpigmentation of skin and nails with white hair due to vitamin B12 deficiency Archives of Dermatology · 1986 · 11 citations
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    Community 10 of 905

    1. B12 and D Vitamins very low (bloodwork showed 15 for D). Dutasteride and Minoxidil not holding back the hairloss. Should i supplement? Reddit · 19 Dec 2025
    2. Topical foam 5% Min, Vitamin B12, and Vitamin D treatment since July Reddit · 25 Nov 2025
    3. 2 months into 0.5 fin, rosemary oil everyday, vitamin b12, derma roller 0.5, ketoconazole every week once. Will keep posting every month Reddit · 17 Sept 2023
    4. M20 with Low Vitamin D, B12, and Iron: Impact on Hair Loss? Community · 29 Aug 2025
    5. Vitamin Deficiency Correction Timeline? Reddit · 9 Feb 2026
    6. PSA: Check your vitamin D levels! Reddit · 20 Jun 2025
    7. 4 months difference after taking D3 vitamin pills and Anti hair fall shampoo only Reddit · 7 Aug 2024
    8. Can low level of vitamins cause hair loss? Reddit · 19 Dec 2023
    9. B12 deficiency hairloss (hair thinning) Reddit · 18 Aug 2025
    10. B5 (Pantothenic acid), B7 (Biotin), B12 Reddit · 15 Mar 2024
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