Natural Factors Saw Palmetto with Lycopene - Saw Palmetto acts as a diuretic and urinary antiseptic, and inhibits the production of dihydrotestosterone, a hormone that contributes to enlargement of the prostate, which in turn leads to frequent and sometimes painful urination. Saw Palmetto also stimulates the appetite and may also enhance sexual functioning and desire. Natural Factors has also added Lycopene to their Saw Palmetto. Recent studies have suggested that the carotenoid Lycopene, is helpful for prostate problems, has anti-cancer properties and is one of the most powerful antioxidants for the cardiovascular system.