Legal status by country
Is MIB-626 legal?
Written by Aaron CuhaReviewed Sep 2026
How MIB-626 is classified in the United States, United Kingdom, Australia and Canada, side by side. Each country has its own page with a direct answer, the regulator's approval status and what the classification means in practice.
All four countries, side by side
| Attribute | United States · FDA | United Kingdom · MHRA | Australia · TGA | Canada · Health Canada |
|---|---|---|---|---|
| Status | Not approved | Not approved | Not approved | Not approved |
| Classification | Investigational, not approved | Investigational, not licensed | Investigational, not registered | Investigational, not approved |
| Note | Investigational under an IND held by Metro International Biotech. Not available for purchase. Supplement NMN is the same molecule but a different regulatory product. | Investigational. No MHRA authorisation. | Investigational. Not registered with the TGA. | Investigational. No Health Canada authorisation. |
US FDA status: An investigational drug in the United States, developed under an IND by Metro International Biotech. It is not approved for any indication and is not the same regulatory object as NMN sold as a dietary supplement, although the molecule is identical. The existence of that IND is what triggered FDA's 2022 determination excluding NMN from the dietary supplement definition, a determination FDA reversed in September 2025.. Reviewed Sep 2026.
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General information current as of Sep 2026, not legal advice. Classifications change; confirm with the regulator or a lawyer for a specific situation. Educational use only. This database summarizes published research. It is not medical advice and contains no dosing protocols or recommendations for personal use. The Longevity Archive has no vendor relationships.