Super Colostrum by NOW combines Colostrum with the herbal ingredients, Larch Arabinogalactan, Olive Leaf and Astragalus to maximize immune system support.  Colostrum is rich in immunoglobulins IgG, IgM and IgA, which are important immunological proteins for both animals and humans.  In addition, NOW® has also included Eleuthero to support a healthy stress response. (60 pills at 500 mg)