Niacinamide Whitening Toothpaste - Our 2 pack niacinamide toothpaste enriched with niacinamide essence to remove coffee, tea and surface stains. Strengthen Enamel - Niacinamide toothpaste effective cleansing action strengthens enamel and protects against cavities, giving you a beautiful smile. Fresh Breath - Niacinamide toothpaste whitening will make your breath fresh and clean, say hello to a smile and fresh breath with our toothpaste. Easy to Use - With our toothpaste niacinamide brush your teeth for 3 minutes, twice a day for best results.