Puffery or Not? Does a Claim of "World's Best" Pass the Smell Test?

Advertisers love to boast that their brands and products are the “world's best.”  

When they can, they also like to take refuge in “puffery”—a legal safeguard, beloved by marketers, that allows for bluster and exaggeration on the theory that consumers would not expect proof or evidentiary support for such boasting. But it doesn't always work. The National Advertising Division of the BBBNP (NAD) has a long history of reviewing different variations of “world's best” and providing analysis on when the language can be considered puffery and when it constitutes an objectively provable claim, one that requires evidentiary support. This week, NAD released a new decision on the issue of puffery, examining an advertising claim made by Vacation® for the “World's Best Smelling Sunscreen.”  Case Report #7590 (July 2026). NAD's decision found that when standing alone, the slogan, “World's Best Smelling Sunscreen” was puffery. However, in other contexts, such as when the claim was tied to positive customer reviews, NAD found it was not puffery, but rather a claim that was unsupported. 

The claim was challenged by a competitor, Beiersdorf, Inc., who argued that “World's Best Smelling Sunscreen” was an objectively provable claim that required sensory testing as support. After all, there is ample NAD precedent where competitors making claims of superior smell or superior test were required to have sensory testing against a significant portion of the market. NAD did not agree with the challenger, however.  According to NAD, “the issue…is whether reasonable consumers would expect the advertiser to have undertaken a comparison of every single sunscreen in the world to support the ‘World’s Best’ claim.” NAD further noted the subjective nature of smell and, finding that consumers would be unlikely to take the claim seriously, determined that when standing alone—for example on signage, the claim was non-actionable puffery.

Context is everything, however. The phrase “World's Best Smelling Sunscreen” also appeared on Vacation's website in conjunction with a claim about customer ratings and reviews: “4.8/5.0” and “13,457 Reviews.”  According to NAD, “by tying the claim to the reviews in this manner, consumers may take away the message that the claim is more than puffery and relies on the reviews as substantiation for a claim of preference.” NAD recommended that the advertiser modify its advertising to avoid the suggestion that customer feedback and reviews formed the basis of the claim. NAD's analysis was similar to its handling of a claim made by Pactiv, “World's Best Kitchen Bag.”  Case Report #5105 (2009). NAD found that, standing alone, the phrase was probably puffery, but when it was used in conjunction with a performance attribute (claims about the product's OdorBlock technology) it was no longer puffery. It was an objectively measurable claim that required evidentiary support. 

The decision affirms several principles for navigating the landscape between advertising slogans that can be regarded as puffery, and those that are objectively provable claims. 

• Is “World's Best” tied to a measurable attribute?  Here, “World's Best” is tied to a sensory attribute—smell. This makes it a closer call than if the claim was simply “World's Best Sunscreen.”
• Consider context and net impression. If the advertising claims, or suggests, that consumer feedback, experience or reviews provide a basis for the claim of “world's best" the statement is no longer puffery— because the advertising itself suggests a measurable means of assessing superiority.        
• Consumer Perspsective. Whether the issue is litigated in court or before NAD, the ultimate driver of whether a statement in advertising is non-actionable puffery or a claim requiring substantiation, is consumer understanding and expectation.   

"obvious hyperbole, exaggerated displays of a manufacturer’s pride in its product and other non-provable claims, the truth and accuracy of which cannot be determined, have been found to constitute puffery”
https://case-report.bbbnp.org/...