PepsiCo’s Muscle Milk Launches Cleaner-Label Protein Shake Lineup

May 21, 2026 | Beverages

Real ultra-filtered milk is a complete protein, containing whey protein, a fast-acting muscle-building protein, as well as casein Muscle Milk, the original ready-to-drink protein shake brand with nearly 30 years…

Real ultra-filtered milk is a complete protein, containing whey protein, a fast-acting muscle-building protein, as well as casein

Muscle Milk, the original ready-to-drink protein shake brand with nearly 30 years of nutrition expertise, announced the complete reformulation of its protein shake lineup — now made with ultra-filtered milk, delivering 26-42g of complete protein per serving with no artificial sweeteners, flavours, or added colours. The reformulation launches alongside a partnership with rugby medalist Ilona Maher and a nationwide protein for all campaign designed to bring protein clarity to everyday consumers.

Together with Maher, Muscle Milk is introducing an immersive NYC-based experience and a national protein social media giveaway designed to cut through the protein noise and deliver what matters most: protein that helps support healthy muscles with a great taste.

Americans are thinking about protein more than ever, but many feel overwhelmed by conflicting information and complicated ingredient lists. While 73% recognize its importance beyond the gym, nearly two-thirds admit they don’t know how much they should be consuming each day. Muscle Milk’s reformulation meets the moment with convenient shakes made with complete protein from ultra-filtered milk with no artificial sweeteners, artificial flavours, or added colours.

Real ultra-filtered milk is a complete protein, containing whey protein, a fast-acting muscle-building protein, as well as casein, a protein that is more slowly digested to support ongoing muscle support. Each shake delivers the protein consumers expect from Muscle Milk, with 26 grams in the standard subline and 33-42 grams in the Pro subline. The result is a smooth, great-tasting shake that helps support healthy muscles. Muscle Milk is now the only national ready-to-drink protein shake made with high-quality protein made from real ultra-filtered milk and no added colours, no artificial sweeteners, and no artificial flavours. It is available in indulgent flavours, including Chocolate, Vanilla Crème, Cookies ’n Crème and Strawberries ’n Crème.

“Protein has never been more popular, but it’s also never been more confusing,” said Marissa Pines, VP/GM, Gatorade Brands at PepsiCo. “We saw an opportunity to simplify the experience for consumers. With our new formula, we’re delivering high-quality protein from real ultra-filtered milk, with no artificial sweeteners, flavours, or added colours, and the great taste people expect from Muscle Milk. This is the formula Muscle Milk has always been building toward: great tasting with fewer ingredients and built for how people actually use protein today.”

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