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

From olive oil and Greek yogurt to treats like ice cream and bacon, Kirkland Signature rivals premium brands. Made by ...

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

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 ...

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

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

Costco carries two versions of its Kirkland Signature Cognac. Here's who makes the spirit, and whether it's worth buying on ...

THEY say imitation is the sincerest form of flattery, but what happens when it veers into outright theft? Read more at The ...

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

Costco may be known for its rotisserie chicken, convenient take-and-bake meals, and top-tier bakery section, but within the ...

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