Listerine Antiseptic halitosis ad, Ladies' Home Journal January 1949
The pattern
This still is filed under Question headline.
Define
The first line is a question the reader was already asking, or one they cannot leave unanswered.
Mechanism
Open loop plus recognition. A good question is the reader's objection, spoken first by us.
Verdict
We know the real objection and can answer it in the next breath.
Why it works
The picture carries the accusation, so the copy never has to insult the reader directly - the baby's turned head is the verdict and the first line merely reads it back to her. Naming the condition halitosis medicalises an ordinary social worry, which both dignifies the fear and leaves the reader unable to rule herself out. Are You Immune? closes the last escape route by turning the reader into a suspect rather than a bystander. The remedy is then made trivial - rinse, and it stays that way for hours - so a manufactured anxiety gets one cheap, repeatable resolution, which is the whole halitosis playbook in miniature.
Steal this when
Reach for this when the problem is one the buyer cannot detect in herself and nobody will tell her about - show a third party's reaction instead of asserting the problem. It is also the model for taking a common complaint, giving it a clinical name, and owning the name.