Many Kirkland Signature products are less expensive versions of the name-brand options. Costco's version is similar to a pre-mixed option rather than an actual hand-made Old Fashioned cocktail.

Plenty of people buy Costco's Kirkland Signature products, but that doesn't mean every item is a winner. We take a look at some of Kirkland's biggest failures.

While Kirkland Signature gets its brie from Isigny St. Mère, the company is also responsible for other products like Camembert, Mimolette, and even Pont-l’Évêque.

Costco’s $86 billion Kirkland Signature brand went against industry standards when it was launched in 1995. WSJ breaks down why the private label is now the retail behemoth’s secret weapon.