Our cows are not treated with artificial hormones! Grade A. Pasteurized. Homogenized. Thank you for choosing Producers Dairy. Excellent source of calcium, vitamin D3, riboflavin and phosphorus. Good source of vitamin A, potassium and vitamin B12. No artificial hormones. We have always felt that our cows should be allowed to produce milk naturally. That is why none of our cows, and those of the other local dairy families we work with, are ever given the growth hormone rBST (No significant difference has been shown between milk derived from rBST-treated and non rBST-treated cows). Hoppy's favorite. Look for the seal. Real California milk. An instrumentality of the California Department of Food & Agriculture. To make sure it's certified local. Up to 20% of the milk in California grocery stores is actually trucked in from out-of-state. So to know that the milk you're bringing home to your family is certified local, the best thing you can do is look for the Real California Milk seal. The seal certifies the milk you're purchasing is 100% grade A milk, sourced exclusively from local dairies here in the Golden State. It also assure you that you're supporting local dairy families and providing top quality milk for your family.