Is Guayusa High in Caffeine? A Comprehensive Look
                                
                                
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                                    4 min read                                
                            
                                According to one supplier's lab tests, the dried leaves of the guayusa plant can contain a caffeine content ranging from 1.9% to 7.6%, with an average of approximately 3.0%. The answer to "is guayusa high in caffeine?" is yes, but its overall effect is more balanced than other high-caffeine beverages.