Nutra-Brt60 ml Support your body's natural defenses with Nutra Brt, a targeted herbal formula combining Campsiandra angustifolia bark and Houttuynia herb extracts in a convenient liquid drop format. Each 3 mL serving delivers a potent proprietary blend designed to promote immune function and overall wellness. With 20 servings per bottle, this ethanol based extract offers rapid absorption to help you maintain vibrant health year round.