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

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

Kirkland Signature Organic Extra-Virgin Olive Oil is among the best on the market. The highly hyped oil is sourced from ...

Wondering if you should turn to Costco or Trader Joe's for a cheap, tasty lager? We've got you covered with a detailed ...

Lululemon alleges that Costco has stolen the intellectual property of its Scuba hoodies and sweatshirts, Define jackets and ...

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

Brewed by Deschutes Brewery in Bend, Oregon, Kirkland Lager just won silver at the World Beer Cup and previously won gold at ...

Costco’s Kirkland Signature brand is perhaps America’s weirdest private label. You can put Kirkland Signature AA batteries alongside Kirkland Signature cashews in your shopping cart.

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