GSO-DOURO VALLEY GRAPE SEED OIL Douro valley grape seed oil is a high purity, low colored vitis vinifera seed oil,obtains through cold extraction and without any solvent to keep all benefits of the oil. It is rich in palmitic, stearic, oleic and linoleic acid. It has been traditionally used as a wound healer and anti-inflammatory. Is used in cosmetics because its natural antioxidant properties