GOPO is the active compound in Rose-Hip Vital which makes it unique.Patented extraction and drying processes isolate and activate the galactolipid/fatty acid called GOPO which has scientifically proven anti-inflammatory and antioxidative properties.GOPO has anti-inflammatory properties and works by stopping excess white blood cells from gathering around inflamed tissue, thereby breaking the cycle of inflammation. This helps to reduce the symptoms of mild arthritis.Rosehip products that do not contain GOPO have not been shown to have anti-inflammatory properties. To watch a short video explaining how GOPO works click here.