Echinamide and potent herbs combine for immune support and to help you fight off that cold or flu. Natural Factors Echinamide extract has been proven to consistently enhance immune system function. Echinamide is a patent pending extract of

Echinacea purpurea

, certified organic echinacea grown in BC's Okanagan Valley at Factor Farms.

This formula also contains astragalus, goldenseal, ginger extract, elderberry and wild cherry for effective immune support to shorten the duration of your cold or flu.