Which milk brands have bovine growth hormones in them?

Many conventional milk brands may use cows treated with bovine growth hormone (rBST or rBGH), which is a synthetic hormone used to increase milk production. Brands like Dairy Farmers of America and some store-brand milks may include milk from cows treated with rBST. However, many companies, including organic and some mainstream brands like Horizon Organic and Organic Valley, explicitly state that their milk comes from cows not treated with growth hormones. Always check the label for specific information regarding hormone use.