Immunomodulator: modifies and affects the immune system whenever deemed necessary Immunomodulators enhance the immune system’s response to infection, invasion, or disease. Some herbs stimulate T-suppressor cells, macrophages, and natural killer cells, enhancing anti-cancer activity against malignant tumors. Other herbs will enhance the production of antibodies, acting as antigens themselves. Examples: Allium cepa (onion) Allium sativum (fresh garlic) Andrographis paniculata (andrographis) Astragalus membranaceus (astragalus) Baptisia tinctoria (wild indigo) Berberis (Mahonia) aquifolium (Oregon grape root) Berberis vulgaris (barberry) Bryonia alba (white bryony) Calendula officinalis (calendula) Ceanothus americanus (red root) Codonopsis tangshen (codonopsis) Echinacea spp. (echinacea) Eleutherococcus senticosus (eleuthero) Eupatorium perfoliatum (boneset) Ganoderma lucidum (reishi mushroom) Glycyrrhiza glabra (licorice) Hydrastis canadensis (goldenseal) Inula helenium (elecampane) Iris versicolor (blue flag) Lentinus edodes (shitake mushroom) Ligusticum porteri (osha) Ligustrum lucidum (ligustrum or privet mushroom) Momordica charantia (bitter melon) Panax ginseng (Asian ginseng) Panax quinquefolium (American ginseng) Phytolacca americana (poke root) Propolis Rhodiola rosea (golden root) Schisandra chinensis (schisandra or wu wei zi) Spilanthes acmella (paracress) Thuja occidentalis (thuja or cedar) Tilia europaea (linden flower) Trametes versicolor (turkey tail mushroom) Viscum album (European mistletoe, subcutaneously) Withania somnifera (ashwagandha) Zanthoxylum clava-herculis (prickly ash) Zingiber officinale (ginger)