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Framework status as of publication. This is the 2026 edition of a maintained reference. It does not publish current statuses for named compounds, because a status is only true on a date, and this page is read long after it is written. What it publishes instead is the set of frameworks a status can sit in, what each one does and does not tell you, and the method for establishing a current answer from a primary source on the day you need it. A peptide does not have one legal status. It has a posit …

"Research use only" is a labelling category, not a quality grade and not a form of approval. On a peptide listing, it signals that the material is being offered for laboratory work rather than for people, and that framing carries a consequence most buyers never see: the disclosures, the dosing information, and the after-sale procedures that come with a product sold for human use are not part of what is being sold. They do not transfer to the buyer either. They simply are not there. That is the d …