Herbal Supplement. Standardized extracts. Certified potency. Based on the Herb Masters Original Formula, Echinacea-Golden Seal Power is a valuable blend with just the right balance of natural plants that are most effective. Certified Potency is your guarantee of dependable consistent quality and potency in every capsule every time! Only from Nature's Herbs. Our exclusive FreshCare System inhibits normal plant oxidation, maintaining product potency and extending freshness. It includes all-natural antioxidants in each capsule, oxygen-absorbing packets in each bottle, special air-tight seals and amber glass packaging for uncompromised quality.