Kirkland

Kirkland Signature is the private-label brand of Costco Wholesale Corporation, established in 1995 and named after the city of Kirkland, Washington. In the healthcare and life sciences sector, the brand is a major provider of over-the-counter (OTC) medications, vitamins, and dietary supplements, often manufactured to meet or exceed the quality of national brands. Many of its health products are USP (United States Pharmacopeia) verified, ensuring standards for purity, potency, and quality. The company operates a vast network of pharmacies within Costco warehouses, providing prescription services and immunizations alongside its extensive line of consumer health products.