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Vitamin B7 (Biotin)

    Brands

    DEA Class; OTC

    Common Brand Names; Meribin, coenzyme R

    • B Vitamins; 
    • Vitamins, Water-Soluble

    Nutrition

    Sources: liver, legumes, tomatoes, soybeans, carrots

    Function: member of water-soluble vitamin family, serves as cofactor to several carboxylases

    Deficiency is extremely rare, may cause dermatitis, alopecia, perosis

    Biotin deficiency (extremely rare), brittle fingernails, diabetes, alopecia

    Biotin is essential for the metabolism of proteins and carbohydrates, and in the production of hormones and cholesterol.

    Hypersensitivity

    • Generally safe
    • Doses of 10 mg per day have been taken with no adverse effects

    RDA values not requirements but recommended daily intakes of nutrients

    Eating too much raw egg white (contains avidin that binds biotin)

    Laboratory test results may be falsely high or low when biotin levels are higher than the recommended daily allowance; biotin is found in multivitamins, including prenatal multivitamins, biotin supplements, and supplements for hair, skin, and nail growth in levels that may interfere with laboratory tests

    Pregnancy Category: Not studied

    Lactation: Not studied

    RDA

    Adequate intake: 30 mcg/day

    Lactation: 35 mcg/day

    Vitamin B6 (Pyridoxine)

    capsule

    • 5mg
    • 10mg

    tablet

    • 1mg
    • 5mg
    • 10mg