Why do you weight third-party testing so heavily?

Because supplements are lightly regulated, and independent verification is the closest thing to evidence the category offers. No agency is checking that a protein tub contains its claimed grams, or that a mix is free of contaminants, before it ships — so a published third-party certificate does real work, and its absence is real information too. We state each product's status plainly and factor it into the verdict, which sometimes means a certified product beats a cheaper untested one. It is a bar we hold even when the cheaper product pays us; that is the point of stating it out loud.