New! Shake'n it up since 1922. Klondike Shakes in a pouch! Enjoy responsibly. This is worth mooo-ing for! No artificial growth hormones (Suppliers of other ingredients such as cookies, candies & sauces may not be able to make this claim. The FDA states that no significant difference has been shown between dairy derived from rBST-treated and non-rBST-treated cows) used on cows.