I hope someone corrects me if I’m wrong, but my understanding of ‘reasons to believe’ is how do we vaidate our claims. In other words it’s about establishing credibility or sometype of ‘proof’. Testimonials are obviously one way, but I personally do not put a high level of confidence in testimonials because anyone can go to fivver, for example, and buy testimonials for $5 each.
Is your product backed by any type of 3rd party scientific research? Scientific, medical, or industry tests?
In summary it’s about establishing credibility that what you claim in the unique benefit(s) is plausible (I hesitate to use ‘factual’ or ‘truthful’ because how do we ever really know unless we do the research-testing-etc ourselves).
I trust someone will jump in and correct me if I’m wrong about this. Thanks.