Trust in Natures Herbs Since 1968 Premium Quality Since 1968 Standardized Extract Horsetail Extract Herbal Supplement Power Herbs Freshcare System Our exclusive FreshCare System inhibits normal plant oxidation, maintaining product potency and extending freshness. It includes all-natural antioxidants in each capsule, air-tight seals and advanced bottle design for maximum performance. Power Herbs, exclusively from Nature's Herbs contain standardized extracts of naturally occurring active compounds while retaining and enhancing the whole-plant synergistic benefits to provide consistent quality and potency in every capsule every time.