Supplement based on Tetraselmis chii, microalgae rich in SOD (superoxide dismutase). 100% natural antioxidant based on marine phytoplankton. This complex and natural ingredient from the microalgae of marine phytoplankton cultivated near the Doñana National Park, contains other bioactive components, known as secondary antioxidants that quickly saturate and need a recovery time to function again. Among them we find vitamins, trace elements, pigments and minor antioxidants, which make it rich in vitamins of group B (B1, B2, B6 and B12), vitamins E, C and K2, trace elements such as calcium, magnesium, phosphorus, iron, copper and potassium, and chlorides. In addition, it contains 40% protein, 34% carbohydrates and 8% lipids. The high content of vitamin B12 is especially useful in vegetarians.