Vasotensin provides a purity- and quality-certified peptides isolated from a fish traditionally consumed in Japan know as bonito (Sarda orientalis) to support healthy vascular function for optimal blood flow and healthy blood pressure levels. The peptides are independently assayed for heavy metals, pesticides, and other contaminates. Additional testing for the active peptide LKPNM assures optimal efficacy in just four tablets daily to help maintain blood pressure already within the normal range. Vasotensin is packaged to neutralize the product's natural aroma.Bonito peptides have been shown to reduce the formation of angiotensin II—a potent vasoconstrictor—through their interaction of bonito peptides with angiotensin converting enzyme.