Key takeaways
- ✓Approved, regional, investigational and unapproved describe the molecule's regulatory history.
- ✓Research-grade material is not the authorised medicine, whatever the molecule's status.
- ✓This is general information, not legal advice; rules differ by country.
The four labels
- Approved: authorised by a major regulator for a defined medical use.
- Regional: authorised in some regions but not others.
- Investigational: in clinical development without approval.
- Unapproved: no major approval for any use.
Approved molecule, not approved material
An authorised medicine is made, tested and distributed under pharmaceutical regulation. Research-grade peptide is made for laboratories and is not that product, even when the molecule is the same.
Why statuses change
Approvals, withdrawals, new indications and safety communications all change a status. Lines on compound pages are re-checked at each review, and the review month is shown on the site.
Reading a status responsibly
A status describes what a regulator has decided about a specific product for a specific use. It is a reason to read the primary regulatory documents, not a shortcut for deciding what is allowed in your jurisdiction. If you are unsure of your obligations, ask a qualified adviser.
Statistics
The statistics page counts how many profiled compounds fall under each label.
Related tools
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Cite this page
peptide.wiki. (2026). Understanding regulatory status labels: approved, regional, investigational, unapproved. peptide.wiki. https://www.peptide.wiki/guides/understanding-regulatory-status-labels
Free to cite and link. Last reviewed 2026-11-10.
For laboratory research only. Nothing on peptide.wiki is medical advice. The compounds described are not for human or veterinary use, and research-grade material is not a medicine.