Bye Bye Latté, Hello Guayusa: Why The Amazon Holds the Secret to a Cleaner, Healthier Caffeine Grown in the jungle by the indigenous Kichwa, guayusa (gwhy-you-sa) is a sacred leaf used in ceremonial rituals. This clean source of caffeine is the next noble, and healthy, substitute for your daily cup of coffee. Brandon Presser 08.29.14 […]