100% Micellar Casein Protein Powder with no rBGH and no rBST. No additives mean your casein shakes, smoothies, and recipes will provide clean muscle gains and maximum recovery. Naked Casein is brought to you only from US farms to ensure that our unflavored casein protein powder is packed full of essential amino acids, clean protein, and BCAAs. Naked Casein is cold-processed, which means there is no contamination from chemical detergents (no acid or bleach) or synthetic additives.