100% natural high quality superoxide dismutase powder for skin care   Product Name: superoxide dismutase powder Cas No.: 9054-89-1 EINECS: 232-943-0 Appearance: White powder Enzyme activity:  1000U/mg-6000U/mg PH: 6.5~7.6 Protein content: 85% Introduction- superoxide dismutase powder Superoxide dismutase (SOD) is an enzyme that alternately catalyzes the dismutation (or partitioning) of the superoxide (O2−) radical into either ordinary molecular oxygen (O2) or hydrogen peroxide(H2O2). Superoxide …