Naturally flavored with other natural flavors. No artificial flavors. 10 calories per bottle. 100% daily value of vitamins B3, B5, B6, C and E. No artificial sweeteners. Gatorade level of electrolytes. More vitamins B, C & E, than regular propel. From the makers of Gatorade. propelwater.com. Comments? 1-877-3-Propel, propelwater.com.