Douglas Laboratories - Colostrum 100% Pure New Zealand - 6.3 oz. (180 g) Douglas Laboratories Colostrum powder is all natural, nutraceutical grade colostrum that contains 90 known health-promoting components, including antibodies, immunoglobulins, antioxidants and growth factors that support the immune system, intestinal tract, and healthy cellular integrity. New Zealand Colostrum100% Pure New Zealand colostrum meets the highest purity standards with herds that are pasture-fed and raised without the use of hormones, steroids or antibiotics. Colostrum is collected within 24 hours after the calves needs are fully met. It contains a complete natural delivery system of immunoglobulins that can range up to 30% of total IgG content. Colostrum is flash pasteurized with a low heat process to preserve the integrity of the active compounds. New Zealand Colostrum is certified BSE free and meets the ISO regulated standards by the NZ Ministry of Agriculture and Forestry. FunctionsAfter giving birth, a mother's body produces a special immune and growth promoting substance that is secreted into her milk. This fluid is produced for only the first 24 hours after giving birth, and is called colostrum. This special pre-milk is integral in providing a wide range of immunological and growth promoting factors to the offspring. Research provides evidence for transfer of cytokines, immunoglobulin, growth factors, and maternal immune cells to the newborn via the feeding of colostrum. Bovine colostrum is especially rich in immune factors, amino acids, nucleotides and growth factors. Some elements are present in higher quantities in bovine colostrum than in human colostrum. Research has shown that supplementation with bovine colostrum is able to positively modulate immune function. Immunoglobins, including IgG, and other proteins such as lactoferrin contained in colostrum are thought to play an important role in this supplement's ability to defend itself.