Costco sells house-brand motor oil under the Kirkland Signature label it uses for many other products. Does this oil pass the ...

If you're a Costco shopper -- and you also love ice cream bars -- we're comparing Kirkland Signature and Haagen-Dazs ice ...

Kirkland Signature spirits are a good buy, often made by reputable brands and sold at a good price. We pick out the tequila ...

Shoppers maintain that Kirkland toilet paper isn’t what it used to be. “Toilet paper quality has gone downhill. Now it’s ...

Costco’s iconic $5 Kirkland Rotisserie Chicken is well worth the price of membership, customers say. “If you buy a rotisserie ...

Costco launched a private label named Kirkland Signature that put a unique spin on the concept of shopping generic. The ...

Lululemon is accusing Costco of leading customers to believe that these dupes, slang for duplicates, “are in fact ...

Shopping at Costco can feel overwhelming -- in a good way. The warehouse club store is filled with savings opportunities, but ...

Arguably, the best part about going to Costco is feeling like you got a great deal, but how does the chain keep its Kirkland ...

Lululemon has filed a lawsuit accusing Costco of selling cheap “dupes” of its popular yoga pants and hoodies. The company ...

Vancouver-based Lululemon asserts that Costco sells apparel that mimics the look and feel of its products.

Lululemon files explosive lawsuit against Costco, alleging the retailer copied popular designs and confused consumers with ...