Colostrum-IgG™ is made from bovine colostrum with naturally occurring immunoglobulins for effective immune support. In addition, this concentrate delivers a full spectrum of multiple immune support agents including lactoferrin, N-acetylneuraminic acid and IGF-I. 

Premier Research Lab's colostrum is obtained from a very select group of dairy farmers dedicated to producing quality colostrum. During the summer, spring and fall, their cows are grass-fed (a superior nutrition source for cattle). During the winter, they are fed hay. This premier quality colostrum passes PRL's U.S.P. pesticide testing.

What is Colostrum?
Colostrum is a special immune-active fluid secreted by a female cow for
about three days after giving birth.