Natural Factors Echinacea & Goldenseal 100 mL TinctureEchinacea (Echinacea purpurea) is an immune stimulating herb that is well documented in both traditional medicine and within the scientific community. The patented extract ECHINAMIDE has been proven consistently to enhance immune system function. When taken at the first sign of infection, ECHINAMIDE may stop a cold from developing, may ease symptoms and accelerate healing. ECHINAMIDE uses a patented extraction method to guarantee the bioavailability