Olive leaves are rich in phenolic compounds, which give them antioxidant properties that associated with a lower incidence of disease. Therefore, the aim this work was to determine content, activity, and toxicity aqueous extracts olive main Spanish Greek cultivated wild genotypes. For these purposes, ‘Picual’ ‘Arbequina’ from Spain ‘Koronoeiki’ ‘Kalamon’ Greece were collected, as both countries...