Kirkland isn't the only brand of cleaning products to be called out for failing to meet their own claims. Method cleaning products, of which many are labeled and marketed as non-toxic, were the subject of a class action complaint filed against them and their parent company, SC Johnson & Son, Inc., in 2020. The complaint was based on the fact that the Federal Trade Commission has guidelines about what is required when claiming a product is non-toxic — and the Method products in question allegedly don't meet those requirements.

According to the complaint, "the Products contain various cleaning agents that would each, separately, disqualify the Products from making an unqualified non-toxic claim: dipropylene glycol, phenoxyethanol, linalool, methylisothiazolinone, limonene and octylisothiazolinone." These ingredients can reportedly cause a range of issues that include eye damage, nervous system dysfunction, allergic reactions, and harm to aquatic animals, to name a few. 

The Environmental Working Group has similarly rated Method products low in terms of healthy cleaning. Of the 65 products reviewed, 43 received either a D or an F based on their ingredients. Not exactly the non-toxic products you were hoping for.