2-Stage Energy Release B-Layer Tablets. Long Lasting Energy & Alertness. Alert. Aware. Aware. No Jitters...No Crash! Get more energizing power for your money with 8-Hour Alert. This concentrated formula is designed for fast-acting and long-lasting energizing power and mental alertness. Just one easy-to-swallow 2-Stage Energy Release Bi-Layer Tablet works for up to 8 hours to keep you going throughout the day without crashing. No energy shot can compare to the sustained energy of 8-Hour Alert! Each bottle of 8-Hour Alert provides a 14 day supply of sustained energy.