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HIGH DOSE: One dose, 1 capsule, of Swanson's Niacinamide contains 500mg of vitamin B3, which you can supply your body with daily GOOD BIOAVAILABILITY: Swanson Niacinamide is characterised by good bioavailability and is suitable for a nutrition-conscious lifestyle HIGH QUALITY: Swanson's Niacinamide capsules are tested for quality and purity in independent laboratories WITHOUT UNWANTED ADDITIVES: Swanson's Vitamin B3 capsules are gluten-free and produced without genetic engineering IMPORTANT NUTRIENTS: Swanson's Vitamin B3 contains 500mg of niacin per capsule, an important nutrient involved in many processes in the human body