Many flushable wipes can indeed still cause plumbing problems, including Costco's Kirkland Signature Premoistened Flushable ...

From Kirkland pesto to Jongga kimchi, these Costco-only products are fan favorites you won’t find at any other store.

According to the class-action lawsuit filed in June against the company, Costco’s Kirkland brand wipes allegedly contain “significant” levels of PFAS. Costco argued in the lawsuit that its ...

Costco’s Kirkland Signature private brand is one of the strongest draws to the mega warehouse chain, on par with the big name brands.

If you’ve ever shopped at Costco, you’ve likely purchased something from its premium in-house brand, Kirkland Signature, which has become a household name and a great way to save money.