Youthxym contains significant amounts of Superoxide Dismutase and Catalase, powerful anti-oxidant enzymes that promote longevity and immune health.* But these expensive, hard-to-find substances are vulnerable to stomach acid. We've solved that problem by utilizing sodium alginate, a kelp carbohydrate, to deliver the enzymes to the deeper parts of the G.I. tract. And, for even more protection, we've encased them in Deep Release capsules.