Pure Encapsulations Colostrum 40% IgG Highly Concentrated Immune Support Colostrum is a highly concentrated source of immune and growth factors produced from mammary glands shortly after giving birth. Pure Encapsulations Colostrum is derived from BSE-, hormone-, pesticide-, and antibiotic-free USDA certified dairy farms in the U.S. It is collected after the first 24 hours, defatted, and standardized to contain 40% IgG. Colostrum contains immunoglobulins G (IgG), A (IgA), E (IgE), D (IgD), and M (IgM). Each has a specific role in immune health. IgG is naturally found in the highest concentration. Other naturally occurring immune-support compounds include lactoferrin, proline-rich polypeptide (PRP), lymphokines, interferons, interleukins, oligosaccharides, lysozymes, insulin growth factors (IGF-1 and IGF-2), and transforming growth factors (TGF-alpha and TGF-beta). Key Benefits and Features: Ages 18 and up Concentrated immune support Intestinal support Promotes immune function Supports intestinal health A highly concentrated, synergistic source of immune support and growth factors Standardized to contain 40% IgG Processed to remove the fat content and to preserve the nutritional activity of the proteins Ingredients Serving Size: 2 Vegetarian Capsules Amount/Serving Colostrum (from bovine) (standardized to contain 40% IgG) 900 mg Other Ingredients: Vegetarian capsule (cellulose, water), and sunflower lecithin. Contains: Milk. Does Not Contain: Wheat, soy, dairy, eggs, tree nuts, peanuts, gluten, artificial colors, flavors, sweeteners, coating, shellacs, GMOs, unnecessary binders, fillers, preservatives, magnesium stearate, trans fat, or hydrogenated oils. Gluten Free, Non-GMO Suggested Use As a dietary supplement, take 2 capsules, 2-3 times daily, on an empty stomach or at least 30 minutes before a meal, with 8-12 oz of water. Warning: If pregnant or lactating, have any health condition, or are using any medication, consult your health professional before use. Storage: Store in a cool, dry place. More Info. Pure Encapsulations Colostrum 40% IgG, derived from USDA and FDA certified dairy farms in the U.S., is defatted, and processed at low heat to preserve nutritional activity.