Kombucha with Yerba Mate & Guayusa USDA Organic. Certified Organic by QCS. Gluten free. Non-GMO ingredients. Contents under pressure. My mind is sharp, it's my body that's slow. Natural caffeine from mate, guayusa & green tea. 15 mg traditional kombucha; 95 mg 8 oz cup coffee; 150 mg(total per can at time of packaging) Uplift. brewdrkombucha.com. Connect with us (at)brewdr. Certified B Corporation. Non-alcoholic: contains less than 0.5% alcohol by volume.