Artificial flavor. 5 calories per packet. Gluten free. Sugar free. Low sodium. 90% fewer calories than leading beverages. (Per 16 fl oz beverage, this product 5 calories; leading beverages 130 calories). No caffeine. Low calorie. Have a glass! Crystal Light Drink Mix lets you add flavor to your life with just 5 calories per serving. All the flavor, only 5 calories - it's just the way you like it. CrystalLight.com. how2recycle.info. Carton made from 100% recycled paperboard minimum 35% post-consumer content.