Introduction

Product messages often use words such as faster, better, tested, proven, or recommended. These words can sound informative while leaving the key comparison unclear.
Evaluating a product claim begins by translating it into something specific. What result is promised, for whom, under which conditions, and compared with what?
You do not need to become an expert in every product. You need to identify the evidence that would support the promise and recognize when the available information answers a narrower question.