Kirkland Signature Ultra Shine Dishwashing Liquid

Kirkland Signature is the world-renowned private-label brand of Costco Wholesale Corporation. Launched in 1995, the brand was named after Kirkland, Washington, which was the location of Costco's corporate headquarters at the time. The brand was created to provide high-quality products at significantly lower prices than national brands, maintaining a standard that often matches or exceeds the top names in each category.

The Ultra Shine Dishwashing Liquid is a premium performance cleaning product designed for household use, featuring high grease-cutting power. Like many Kirkland Signature cleaning supplies, it is primarily manufactured in the United States through strategic partnerships with established chemical and detergent manufacturers. While Costco remains the ultimate owner and developer of the brand, they utilize a vast network of specialized suppliers to produce these goods to their exact specifications. As of 2026, Costco Wholesale Corporation continues to own and manage the brand globally, operating from its headquarters in Issaquah, Washington.