Natural products with oyster extract. Oyster extract is extracted from high quality oyster varieties. There are two edible groups called oysters Ostrea and Crassostrea. Oyster extract is a completely natural source of glycogen, phospholipids, marine vitamins and minerals with a rich source of the amino acid taurine. We sell Oyster Extract of well known brands which are made of the best Oysters and are high in good nutrients. Oyster extract is a great and natural source of many important nutrients the body needs, but are not often found in foods. Our products are a great addition to a daily diet and because we sell natural products the nutrients are easily absorbed by the body. Always good prices and delivered quickly.