Hi-Tech Pharmaceuticals Grape Seed Extract (GSE) is a natural substance rich in antioxidants taken from grape seeds. The foundation for this action is found in its polyphenol and pro-anthocyanidin complexes that provide your body with a nearly unparalleled support for a healthier and more robust immune system. A growing number of research studies seem to conclude that there are a myriad of benefits derived from Grape Seed Extracts. This new research indicates that the components of GSE may help to support healthy kidney, brain, bone, total body vascularity and other tissues by supporting a healthier, immune system’s ability to counteract oxidative and metabolic stress.