ABSTRACT
Introduction .................................................................................................................................. 203 What Is
Echinacea
? ..................................................................................................................... 204 What Makes
Echinacea
Work?.................................................................................................... 204 Caffeic Acid Derivatives ....................................................................................................... 204 Polysaccharides ..................................................................................................................... 205 Lipophilic Components......................................................................................................... 206
Quality Issues with
Echinacea
Products ..................................................................................... 206 Limitations on the Use of
Echinacea ..........................................................................................
