Natural Factors Big Friends Liquid Echinacea Alcohol-Free - Natural Berry - Helps relieve symptoms and shorten the duration of upper respiratory tract infections (URTIs) for anyone over age five. When taken at the first sign of symptoms, this alcohol-free, liquid tincture provides supportive therapy in the treatment of common colds. Echinacea purpurea has a long history of use in traditional medicine to help fight off infections and has the most significant clinical support of all the echinacea varieties. This Big Friends formula features ECHINAMIDE, a clinically proven extract standardized to E. purpurea’s three key active compounds: alkylamides, polysaccharides, and cichoric acid. While many supplements use only the purple flowers of this herb, ECHINAMIDE uses both the flowers and the therapeutic roots.