Dual Spectrum B12 has taken nutritional support from this B vitamin to a new level. Each bilayer tablet features ISR technology a specialized delivery mechanism that provides the benefits of immediate and sustained release in one convenient tablet. This supplement gives you the stimulantfree support for your dietary needs and aids in converting food into energy.* Bilayer quick release layer extended release layer. Caffeine free. Laboratory tested. NonGMO no artificial flavor artificial sweetener preservatives sugar starch milk lactose soy gluten wheat yeast fish. Sodium free. Suitable for vegetarians. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose treat cure or prevent any disease.