Terranova vitamin c 250mg complex enhanced with highly active whole and unadulterated superfoods and botanicals vitamin c is a potent antioxidant which helps protect tissue against the potentially damaging effects of free radicals natural sources of vitamin c stabilized rice bran srb srb contains more than 100 known antioxidants this list includes tocotrienols tocopherols and alphalipoic acid which recycle oxidised vitamin c in addition to their own free radical scavenging activity s