Colostrum 80/40™ - Hyperimmune Colostrum  is specially prepared through Proper Nutrition’s advanced techniques to remove the Casein and Lactose and carefully tested to confirm that the final product contains less then 1% Casein and less than 1% Lactose.
The concentrated colostrum provides a minimum of 40% IgG, the principal immune factor found in colostrum, and that’s 40% by total dry weight, making Colostrum 80/40™ the most potent Immune-boosting Colostrum available