PHOENIX – Building on the success of its single-serve protein drinks, Shamrock Farms announced it is rolling out four-packs of its Chocolate Rockin’ Protein, set to debut in dairy cases this month.

The lactose-free beverages are made with real milk and contain 30 grams of protein in each 12-oz bottle.

Shamrock Farms, which was founded 100 years ago, sells a variety of dairy products, including milks, cottage cheese, sour cream and creamers. The company said its protein drink multipack launch is an example of its commitment to making a variety of products and its plan to grow the ready-to-drink beverage category in the dairy case.

"We are excited to offer our loyal Rockin' Protein fans a pack size they have been asking for," said Ann Ocaña, chief marketing officer for Shamrock Farms. "By introducing the four-pack, we will make it easier and more convenient for our devoted fans to stock up on Rockin' Protein."

The Phoenix-based company shared that its multipacks, following their debut at Harris Teeter locations, will be distributed to more retailers throughout the United States in the coming months.