Can I say it?
Can I say “world-class” in a clinic ad?
Yes, with conditions. 3 rules fired across 3 sample sentences, and the checker's own text explains why.
The short answer
Yes, with conditions. The checker warns on this wording but does not block it. The first rule it hits is CG-SUP-004. Its reason: Calling a doctor, clinic or treatment the best, the greatest or number one is a superiority claim. It needs a named ranking or comparison study, and an unsupported "best in the world" is misleading.
Source the rule cites: FTC Act section 5; Lanham Act 43(a), 15 U.S.C. 1125(a); FTC Health Products Compliance Guidance
Checked as an ad promoting a clinical service. Context changes the result. The same samples hit these blocking rules: 1 in a drug or device ad, 1 in a supplement ad, 0 in a clinical service ad.
A clear result is not an all-clear. The checker flags wording for review and does not know your evidence, your state or your platform's review. Read the limitations.
Sample wording, run through the checker
These are sentences written to contain the phrase, not real claims. Each ran through the real engine and the shipped rule-set when this site was built.
World-class care you can trust.
- WarningCG-SUP-004Superiority. Matched: “World-class”
- WarningCG-TRH-001Superiority. Matched: “World-class”
World-class surgeons at your service.
- WarningCG-SUP-004Superiority. Matched: “World-class”
- WarningCG-TRH-001Superiority. Matched: “World-class”
A world-class clinic for weight loss.
- WarningCG-SUP-004Superiority. Matched: “world-class”
- WarningCG-TRH-001Superiority. Matched: “world-class”
- Warning
CG-PLT-012Platform policy. Matched: “weight loss”
What to say instead
This version came back with no rule fired:
Meet our team and read about their training and licenses.
What the rules themselves suggest:
- CG-SUP-004 State what you do and the credentials behind it, or name the ranking, who ran it and when. Drop the superlative.
- CG-TRH-001 Drop ranking and comparison claims unless you hold head-to-head evidence and can disclose the basis. Describe what you offer without comparing yourself to named competitors.
- CG-PLT-012 Describe the clinical service (nutrition counselling, metabolic health visits) without weight-loss outcomes, or get Pinterest approval as a healthcare advertiser first.
The rules behind this answer
Reason, source and citation for each rule that fired, in the checker's own words. Blocking rules come first.
CG-SUP-004 · Blocks approval · Citation checked against stored text
Calling a doctor, clinic or treatment the best, the greatest or number one is a superiority claim. It needs a named ranking or comparison study, and an unsupported "best in the world" is misleading.
Source: FTC Act section 5; Lanham Act 43(a), 15 U.S.C. 1125(a); FTC Health Products Compliance Guidance
Safer wording: State what you do and the credentials behind it, or name the ranking, who ran it and when. Drop the superlative.
15 U.S.C. 1125 · Needs counsel review
CG-TRH-001 · Warns · Citation checked against stored text
Unsubstantiated best, only, lowest-rate or better-than-named-competitor claims about medical providers are superiority claims that need competent evidence and head-to-head substantiation.
Source: FTC Act section 5 and FTC Policy Statement on Substantiation (1984); FTC Health Products Compliance Guidance (2022); state medical advertising rules
Safer wording: Drop ranking and comparison claims unless you hold head-to-head evidence and can disclose the basis. Describe what you offer without comparing yourself to named competitors.
FTC Policy Statement on Substantiation · Needs counsel review
CG-PLT-012 · Warns · Citation checked against stored text
Pinterest allows no weight loss language or imagery in ads, with the exception of approved healthcare advertisers promoting prescription GLP-1 medication in the US and Canada. It also bars references to BMI, testimonials about weight loss, and weight loss procedures.
Source: Pinterest Advertising Guidelines (weight loss products and services)
Safer wording: Describe the clinical service (nutrition counselling, metabolic health visits) without weight-loss outcomes, or get Pinterest approval as a healthcare advertiser first.
Pinterest Advertising Guidelines
Background: Substantiation in the glossary.
Questions
Which rule covers quality superlatives?
Rule CG-SUP-004. It cites 15 U.S.C. 1125. The rule's reason: Calling a doctor, clinic or treatment the best, the greatest or number one is a superiority claim. It needs a named ranking or comparison study, and an unsupported "best in the world" is misleading.
What should I write instead?
The rule's own suggestion for rule CG-SUP-004: State what you do and the credentials behind it, or name the ranking, who ran it and when. Drop the superlative.
Does the answer change for a drug, a supplement or a service?
Context changes the result. The same samples hit these blocking rules: 1 in a drug or device ad, 1 in a supplement ad, 0 in a clinical service ad. Pick the type that matches what you promote when you run the checker.
Next step
Check your own wording
Paste your copy into the free checker. Every flag names its rule and its source.