Natural Lemon Flavor with other natural flavor. 15 mg caffeine per serving. This product contains 5 calories per serving. Leading beverages contain 70 calories per serving. 90% fewer calories than leading beverages. Low calorie. Great products at a price you'll love - that's essential everyday. Our goal is to provide the products your family wants, at a substantial savings versus comparable brands. Were so confident that you'll love essential everyday, we stand behind our products with a 100% satisfaction guarantee. 100% quality guaranteed. essentialeveryday.com. Like it or let us make it right. That's our quality promise. 877-932-7948 essentialeveryday.com.