Two of nature's most powerful cellular protectors join forces in one highly effective formula! A unique phytonutrient found in cruciferous vegetables like broccoli and cauliflower, indole-3-carbinol (I-3-C) is one of nature's most potent cellular protectors, neutralizing free radicals, protecting against toxins and promoting healthy cell cycles. Resveratrol is one of the most powerful natural antioxidants known to science. Combined, they make Swanson Ultra Indole-3-Carbinol with Resveratrol one of the most effective nutritional formulations ever created for cellular defense.