Life Extension X-R Shield Powerful Antioxidant Support - Spirulina, Lemon Balm, Gingko Supports Cellular Integrity, DNA Health Immune System Health - Non-GMO, Gluten Free - 90 Vegetarian Capsules CONCERNED ABOUT RADIATION EXPOSURE? - X-R Shield is an oral formula containing botanical nutrients that help support DNA health and free radical generation--the perfect formula for those concerned about exposure to sources of ionizing radiation. SUPPORTS HEALTHY CELLS AND DNA - Free radicals have the potential to affect living tissue, including your DNA. But the nutrients in X-R Shield can help maintain cellular integrity and DNA health, especially if exposure to ionizing radiation is a concern. POWERFUL ANTIOXIDANTS - Lemon balm (Melissa officinalis) has been clinically shown to support against oxidative stress, by working to inhibit free radicals. Other research shows that lemon balm extract may help to maintain healthy cell function. PROTECT AGAINST FREE RADICALS - Ginkgo biloba supports the body's defense system by promoting DNA health. Meanwhile, preclinical research shows that spirulina helps increase antioxidant defense against damaging free radicals. This superfood also helps support healthy immune response. LIVE YOUR HEALTHIEST LIFE - For over 40 years, we?ve been developing advanced, effective formulas made with the highest standards and based on the latest scientific findings. We believe the answers to a healthier, richer life are within reach, and that rigorous scientific research is the path to get us there. Our formulations are created using the exact ingredients and dosages used in the studies that inspired them, ensuring that maximum bioavailability and efficacy is achieved. X-R Shield provides three nutrients that help support and maintain cellular integrity. Lemon balm has multiple constituents contributing to its free radical quenching capacity. Ginkgo biloba supports the body's capacity to scavenge reactive oxygen species. And spirulina supports cellular antioxidant defense against damaging, radiation-induced free radicals.