Hi there,
I just want to share my experience with colostrum. I'm taking it from 2 years already and feel very well. I have an auto-immune disease and it really helps me. I give colostrum to my 2 years old daughter and it protects her from cold and flu. I buy it from: http://www.iherb.com/Search?kw=colostrum
for a very good price. They have free shipping to U.S. for orders over $20 and you can get discount $5 as a first time buyer with this code: BIK041
These guys from iherb.com sell many supplements at very good prices. Since I found them I'm not buying from no one else.