The High Quality Difference; All Terry Naturally products are manufactured to strict Good Manufacturing Practices (cGMP) set by the FDA and are produced with the highest quality ingredients. Tannin Free; Clinical OPC Heart supplies only low molecular weight OPCs for high absorbability; Other grape seed extracts include high levels of tannins—OPCs with high molecular weight—which have limited absorption and little or no health benefits. Nutrients That Matter; Clinical OPC Heart provides ingredients in their bioavailable forms for excellent absorption and benefits; These include magnesium, benfotiamine, vitamin B6, French grape seed extract VX1, and pomegranate fruit extract. Get to the Heart of Optimal Health; Nutrients and polyphenols in Clinical OPC Heart support proper oxygen and blood flow, healthy cholesterol balance, healthy blood pressure, healthy heart rhythms, and overall cardiovascular function. Heart-Healthy Support; Clinical OPC Heart provides concentrated levels of the most influential heart-healthy nutrients to promote optimal cardiovascular function.