Scientific or veterinary claims with no reference

What you see

Phrases such as “clinically studied”, “vet tested and recommended”, percentages (“96% of cats calmer”), sometimes a named person with a title. The page gives no study, no publication and no way to trace the author.

How to check

• Look for a reference you can retrieve: study title, journal, date, authors.
• Read the asterisks: a percentage “based on customer feedback” is an internal survey, not a clinical study.
• For a named person, search for their name with their profession. Do not conclude they do not exist because you cannot find them: note that the page gives no way to verify them, and ask the shop.

Takeaway

The absence of proof on the page is not proof that something is false. It is a reason not to take the claim as fact.