By eHow Health Editor
Rate: (3 Ratings)
Grapeseed extract belongs to a group of naturally occurring substances known as oligomeric proanthocyanidins (OPCs). They are present in a wide variety of plants and food sources and act as powerful antioxidants, as well as helping to strengthen capillaries, boost immune function, prevent varicose veins, repair connective tissue and assist with allergy control.
eHow Health Editor