The idea to question
A health advert has already passed a government check.
The short answer
A government agency has not approved the advert before you see it. The Federal Trade Commission, known as the FTC, warns readers about that gap. FTC’s health-advert advice

Ask for the source behind the promise
The FTC’s September 2026 advice calls for truthful health adverts backed by scientific evidence, while warning that dishonest claims still appear. FTC’s health-advert advice
Try a direct question: “Can I read the evidence for this exact product and this particular use?”
Ask what was proved about the pharmacy-made medicine
Compounding puts preparation of the medicine with a pharmacist or doctor, in place of a drug maker’s ready-made product. FDA’s compounding answers
FDA is short for Food and Drug Administration. Some adverts say a compounded medicine has been proved to work as well as an approved medicine. That comparison is misleading, says FDA’s guidance available in September 2026. FDA on compounded-drug adverts
Ask whether the evidence concerns the actual preparation being offered. Then ask what the source leaves uncertain.