No not sod like in grass, but Superoxide Dismutase in liposomal form. I don't have time or the expertise to explain why liposomes work so well to deliver nutrients to the cells but from my experience they work very good.
Anyhow I have been taking glutathione via liposome with very good results. SOD has been shown to be more effective than glutatione for free radical scavenging. I rec'd a sample from a manufacturer of the liposomal SOD and this stuff is very good. The manufacturer will sell but in significant quanities, so if anyone is interested in liposomal SOD let me know.