Support your metabolism with our Spring Valley Vitamin B12 Timed-Release Tablets.* Each tablet provides 1,000 micrograms of vitamin B12 which helps with energy production and supports cardiovascular, immune, and nervous system health.* This formula gradually releases vitamin B12 over a period of time for better absorption and is also free of gluten, sugar, lactose, artificial colors and flavors. Supplement your healthy lifestyle with our Spring Valley Vitamin B12