“…Portuguese propolis is far from being completely characterized but results to date indicate that this natural product exhibits some biological properties, namely antimicrobial, mainly antibacterial, but also antifungal activities [ 35 , 36 , 37 , 38 , 39 ]; antioxidant potential [ 35 , 40 , 41 , 42 ]; as well as genotoxic [ 40 , 41 , 43 ] and antitumor [ 38 , 44 , 45 , 46 ] activities, renewing the interest in researching national propolis. More recently, Portuguese propolis samples from Gerês revealed constancy in biological and chemical profiles over the years [ 35 ], which seems to be a distinctive and particular feature of this kind of propolis.…”