Emergen-C drink mix contains Acai Berry juice powder. Acai Berry is a fruit that grows on the Amazon Heart of Palm Tree in the Amazon Rainforest of Brazil. The berry has been prized for hundreds of years by Brazilian natives for Acai's ability to provide a sense of strength, energy and high nutritional content. Naturally sweetened and flavored vitamin drink mix provides a unique blend of vitamins, antioxidants and minerals to boost immunity, increase your metabolic function and ignite energy levels and staying power. Simply pour the powder into a 4 to 6 oz. container of water for a fizzy, flavored drink. Noncaffeinated powder contains 1000 mg. of Vitamin C, seven B Vitamins and essential electrolytes.