100% Natural. Contains caffeine. Spirited Morning Thunder is an earthy combination of mountain-grown black tea and yerba mate - a South American herb - sure to give you the lift you need to get in gear without the coffee jitters. After all, mate is the morning beverage of choice in South America. And with mate's antioxidant benefits, you're doing something good for yourself with each tasty sip. Pour a cup and charge into your day! This product contains all-natural ingredients and flavors, and no artificial colors or preservatives. Gluten free.