Naturally, since Costco doesn't produce its own alcohol, fans have tried to sleuth out who's behind its fan-favorite cans of ...

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

Costco Kirkland products range from food products — like maple syrup, lasagne and coffee — to consumer goods, with many ...

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

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

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

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

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

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

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