Gen-Tec Nutraceuticals source, blend and package 100 percent pure bovine colostrum powder containing 20 percent IgG. Colostrum supplementation is ideal for individuals with a goal of improving gut health, intestinal flora and supporting a healthy immune system. Bovine Colostrum is a dairy derivative that possesses various physiological benefits in exercising individuals. This nutrient dense protein is secreted into the cow's milk from the mammary glands during the post-natal period. Its contents are various immunological compounds which have antimicrobial properties as well as ergogenic potential. Available in 150 g jar.