E - Natural Products
- Echinacea (echinacea, purple coneflower, coneflower, American coneflower)
- Echinacea Purpurea (Echinacea, purple coneflower)
- Eleuthero (eleuthero, Siberian ginseng, devil's bush, devil's shrub)
- Ephedra (ephedra, Chinese ephedra, ma huang)
- Eucalyptus Oil (eucalyptus essential oil, eucalyptol, eucalyptus oil, fever tree, blue gum, gum tree, red gum, stringy bark tree)
- European Elder (European elder, black elder, elder, elderberry, elder flower, sambucus)
- European Linden (European linden, European lime tree, tilia, linden, basswood)
- European Mistletoe (European mistletoe, mistletoe)
- European Pennyroyal (European pennyroyal, pennyroyal, pulegium, pudding grass, mosquito plant)
- Evening Primrose Oil (evening primrose oil, EPO)
