Premium A2 milk is a source of high quality proteins, casein and whey. Casein has two common forms, known as A1 and A2 beta-casein. However, certain cow breeds provide milk with only the A2 beta-casein protein. This cow’s milk is called A2 milk. With its natural golden color and amazing nutritional benefits, A2 milk is the way milk should look, taste and be enjoyed – as nature originally intended.