Are peptides illegal?

There is no single national rule that makes peptides, as a group, illegal. This site's legal fields are national and go compound by compound: US, UK, Australia, and Canada. Some peptides are approved prescription medicines (semaglutide, tirzepatide, tesamorelin, and PT-141 as Vyleesi). Many others are listed not approved, research use only. Research use only is a regulator's label. It is not a criminal law, and it is not permission to take the vial. Selling an unapproved product as a drug for people is a different legal question from the national field on /legal. This dataset has not filled in any US state, UK county, or Canadian province. This FAQ does not invent a ban and does not invent a state statute. Compound pages: /legal.

Legal status by country, one page per compound

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of legality & independence. Legal status, sourcing, and how we stay neutral.