Herb Pharm Super Echinacea® Liquid Extract: USDA Organic Immune Support for Year-Round | Fast-Absorbing Echinacea Tincture, 4 Plant-Part Blend: Root, Leaf, Flower & Seed | Up to ~3 Week Supply, 1 oz*

Customers find this echinacea supplement effective for immune system support, particularly for allergies and colds, and consider it the best tincture available. They appreciate its organic ingredients and consider it good value for money. The product receives mixed feedback regarding side effects, with some customers experiencing a numbing sensation while others feel better after taking it. Customers disagree on the taste.