NOW Biotin 5000 mcg (120 vegetarian capsules) is a high- potency dietary supplement that supports energy production, amino acid metabolism, and immune system health. As a water-soluble B-vitamin, biotin plays a vital role in gluconeogenesis, fatty acid synthesis, and the metabolism of amino acids, helping to convert nutrients into energy. It also supports the synthesis of important proteins and contributes to healthy skin, hair, and nails. Family-owned since 1968, NOW ensures GMP quality assurance for purity and potency, offering a trusted way to maintain optimal biotin levels and overall wellbeing.