What weasel words are used in advertising?

Some of the most common weasel Words used in advertising or marketing include "best", "rare", "recommended", "healthy", "exclusive", and all sorts of subjective positive labels. Also, weasel Words can include phrases like "experts agree...", "experts recommend...", or claims like "studies show that..." or "9 out of 10 doctors / experts / whatever recommend...". Also, statements like "Up to 80% off" can be weasel Words.

These Words and phrases can fool some people, leading them to buy a product based on misleading advertising...but they often don't fool people, especially the smarter shoppers, who will be put off by them. They can thus backfire and harm a company.