Echinacea Purpurea CO2 ExtractWat is Echinacea Purpurea CO2 Extract? Echinacea Purpurea CO2 Extract is a powerful plant extract derived from the purple coneflower (Echinacea purpurea), an herb that has been used for centuries for its protective and strengthening properties. This extract is extracted using CO extraction, a pure method that optimally preserves the active substances from the plant. The result is a concentrated extract rich in bioactive components. Echinacea is