* Premium Herbal * Immune Support * Certified 400 mg * Dietary Supplement * Certified Organic by QAI Health & longevity through the healing power of nature—that"s what it means to Trust the Leaf. Echinacea (Echinacea purpurea) has been clinically shown to support the immune system. Our Echinacea purpurea is carefully grown, tested and produced to certified quality standards.