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Can I say it?

Can I say “#1” in a med spa ad?

Yes, with conditions. 2 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-001. Its reason: Ranking and superiority claims need a named source, a comparison set and a date.

Source the rule cites: FTC Act section 5; Lanham Act 43(a), 15 U.S.C. 1125(a)

Checked as an ad promoting a clinical service.

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.

Sample 1 · actual checker output1 rule fired

We are the #1 med spa in town.

Sample 2 · actual checker output1 rule fired

Rated #1 by patients.

Sample 3 · actual checker output2 rules fired

The #1 weight loss clinic.

  • WarningCG-SUP-001Superiority. Matched: “ #1”
  • WarningCG-PLT-012Platform policy. Matched: “weight loss”

What to say instead

This version came back with no rule fired:

Ask us about our team, their training and what to expect at your first appointment.

Actual checker output: no rule fired. It still has to be true for your business.

What the rules themselves suggest:

  • CG-SUP-001 Say what the ranking is, who ran it and when ("ranked
  • 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.

  1. CG-SUP-001 · Warns · Citation checked against stored text

    Ranking and superiority claims need a named source, a comparison set and a date.

    Source: FTC Act section 5; Lanham Act 43(a), 15 U.S.C. 1125(a)

    Safer wording: Say what the ranking is, who ran it and when ("ranked

    15 U.S.C. 1125 · Needs counsel review

  2. 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 number one claims?

Rule CG-SUP-001. It cites 15 U.S.C. 1125. The rule's reason: Ranking and superiority claims need a named source, a comparison set and a date.

What should I write instead?

The rule's own suggestion for rule CG-SUP-001: Say what the ranking is, who ran it and when ("ranked

If the checker shows nothing, can I publish?

No. A clean result means none of the checker's rules matched. It does not weigh your evidence, your state or your platform's review, and it is not legal advice. Read the limitations page for what it misses.

Next step

Check your own wording

Paste your copy into the free checker. Every flag names its rule and its source.

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