The supplied FAQ describes the two ingredients as complementary. Genactin®, the kiwi fruit extract, is described as rich in antioxidants, vitamin C, vitamin K and polyphenols, and is positioned around healthy platelet function and healthy blood pressure — maintaining a balance in platelet activity without interfering with normal clotting, in the FAQ’s words — together with lower oxidative stress and support for the endothelium, the inner lining of the blood vessels. L-Arginine is a precursor of nitric oxide, a molecule that relaxes and widens blood vessels, which is why it is used in nutritional formulations associated with circulation, healthy blood pressure and endothelial function. Product positioning is distinct from findings in ingredient-level research — see the Science section for what each study actually examined.