The once-famous budget-friendly golf ball has been discreetly upgraded with impressive results. Here's how you spot the new ...

If Kirkland Signature basil pesto regularly makes it onto your shopping list, you may be wondering where Costco sources the ...

Joe Ng, CEO of fashion studio Shift, said Lululemon's pants may have inspired Costco's, but the design isn't as unique as a ...

Kirkland Signature is now bigger than some of the world’s biggest companies—and it has become essential to Costco’s business.

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

Costco's Kirkland Signature Imported Basil Pesto is one of its top-selling grocery items. The pesto is made with D.O.P.

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

Costco shoppers have been complaining for a while now about the declining quality of the Kirkland Signature Bacon. “Kirkland ...

Wondering if now is the time to buy Costco? Spoiler alert -- it's very rarely a bad idea to hold this stock for a few years.

Lots of people blend the frozen berries into smoothies. “We use it for our smoothies! Can never have enough!” one commented. ...