Defense Against the Most Reactive Free Radicals Hydroxyl Blox by Compounded Nutrients supports your body's natural defenses against the Fenton reaction — the iron- and copper-driven process that generates hydroxyl radicals, among the most reactive and damaging of all free radicals. It combines antioxidant vitamins, minerals, and botanicals to comprehensively support healthy redox balance. Why You'll Love It Hydroxyl radical defense — supports functions that help limit hydroxyl radical formation Fenton reaction support — comprehensively supports the pathways involved in the Fenton reaction Antioxidant network — NAC, alpha lipoic acid, catalase, and vitamins A and E work together Botanical boost — rhodiola, clove, luteolin, and naringin add antioxidant support How to Use Take as directed on the product label, or as recommended by your healthcare practitioner. The manufacturer recommends taking Hydroxyl Blox alongside selenomethionine (such as SeMet 50). This formula contains vitamin A and is not recommended during pregnancy. It also contains alpha lipoic acid (which may lower blood sugar), vitamin E (which may thin the blood), and naringin (which can affect how some medications are processed). If you are pregnant or nursing, take blood thinners or blood-sugar or other medications, or have a medical condition, consult your healthcare practitioner before use. Key Ingredients Vitamin A, vitamin E, copper, N-acetyl-L-cysteine (NAC), alpha lipoic acid, catalase, naringin extract, rhodiola rosea extract, clove, luteolin, and inositol. For complete reactive-oxygen defense, pair with SOD Assist and Peroxy Blox. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.