“…The majority of the 39 comparisons involved lipophilic Echinacea purpurea extracts based on alcoholic extractions, glycerol or hypercritical CO 2 extractions [14,15,[17][18][19]22,[25][26][27]30,32,[36][37][38][39]. Seven preparations contained Echinacea purpurea pressed-juices (hydrophilic) [21,23,24,31,33,40,42], whereas four preparations contained dried, powdered or unspecified Echinacea [16,28,29,43]. As anticipated, a great variety of Echinacea preparations were included in this analysis with the aim to investigate overarching evidence of activity for the medicinal plant.…”