Kirkland Signature Protein Shake

Kirkland Signature is the private-label brand of Costco Wholesale, specifically designed to provide members with high-quality products at significantly lower prices than national brands. This specific protein shake is a ready-to-drink beverage designed for meal replacement or post-workout recovery, typically featuring high protein content and low sugar.

While the Kirkland Signature brand is based in the United States, the manufacturing of their various products is often outsourced to leading national brand manufactuers or co-packers. For their ready-to-drink protein shakes, production is primarily located within the United States and Canada to serve the North American market, often utilizing facilities specialized in aseptic packaging. Ownership remains entirely with the Costco Wholesale Corporation, which maintains strict quality control over the formulations.