Home - Caffeine - Tea Guayusa Tea Guayusa Tea Caffeine 41 mg per 236.588 ml Switch to fl oz Calories: 0 kcal You Might Also Like:Waka Instant TeaTeavana TeaTea (White)Tea (Oolong)Tea (Jasmine)Twig Tea (Kukicha)YMateina Yerba MateYerba Mate TeaZest Highly Caffeinated TeaYellow Tea