Explained
Are peptides legal?
Built from index records dated 2026-10-09 Compiled by an automated pipeline, checked by The Peptide Observer editorial desk How this site works
This site cannot answer that, because what it holds is the result of one automated query of the United States FDA drug application register for each name on one date, which records whether an approved product exists under that name rather than saying anything about legality.
Every regulatory line on this site is a dated query result and nothing else. This site is not qualified to give legal advice and does not give any.
What we actually know
The register query was run once for every name in the index, on a stated date. What came back:
The query was run on 2026-10-09. That date is printed on every page carrying a register result, because the register changes.
Scope statement: this records the result of a single automated query against the openFDA drugsfda endpoint on the stated date. It is not legal advice and is not a jurisdiction-by-jurisdiction legality assessment.
The scope statement carried with every register result on this site.
Where a name did return an application record, that record almost always belongs to a different, approved pharmaceutical product that happens to share the name. That product is not what this site describes.
What is not known
- Legality is decided by several sets of rules at once, including controlled-substance scheduling, import and customs rules, sport anti-doping rules, and the rules of whichever country a reader happens to be in. None of those were queried.
- A name returning no application record means the register returned nothing for that name on that date. It does not mean a substance is prohibited, and it does not mean it is permitted.
- Registers change. A query result is only true of the day it was run, and the date is printed on every page that carries one.
How to read this
- Read the date before the result. The register is a live system and these pages are a snapshot of it.
- Treat the register as one narrow fact about a name, not as a status for a substance.
Read next
Where this comes from
Register results come from the openFDA drug application endpoint. The exact query behind each result is linked on the entry's own page.