Gnc men's staminol™ ultra: daily formula for male performance men's staminol™ ultra contains a powerful combination of ingredients, including l-arginine for intense vasodilation, along with a potent blend of herbs designed to sexual health and vitality. Performance: formulated to enhance blood flow and includes l-arginine, which s nitric oxide production to help maintain blood vessel tone. Sexual health: features powerful ingredients for sexual health, including clinically studied testofen®. Plus it includes zinc for reproductive health. Men's health: rich vitamins and minerals essential for energy metabolism, red blood cell production and antioxidant protection to defend against cell aging. . Gnc men's staminol ultra - 60 capsules