Ener-C now offers a delicious immunity and energy-boosting multivitamin that\'s completely sugar-free, non-GMO, and is naturally sweetened with fruit-derived erythritol and Stevia. Ener-C is a caffeine-free, multivitamin drink mix ideal to support daily immunity, energy and hydration. The flavours and colours on the formula come from real fruit and vegetable sources. Ener-C use best-in-class mineral ascorbates as their primary source of vitamin C for superior bioavailability and absorption, along with 24 other essential vitamins and minerals.