Semax and Selank: Approval Status Outside the US and What's Known
Factual overview of Semax and Selank — where they're approved, where they aren't, and the state of the research.
Factual summary compiled from public regulatory sources. Not medical advice, not a recommendation, and not instructions for use. No dosing appears anywhere on this site, nothing here is for sale, and this page carries no commercial relationship. How this page is sourced.
| Approved in | Russia, for certain clinical uses |
|---|---|
| FDA approval | None — cannot be lawfully sold for human consumption in the US |
| Evidence base | Mostly Russian institutional studies; limited Western replication |
| Long-term safety | Thin outside the approved indications |
| Sold as | Research use only in the US |
Approval status
Semax and Selank are peptide compounds developed in Russia, where both have been approved for certain clinical uses. Neither is approved by the FDA in the United States, and neither may be lawfully sold for human consumption there. In the US they appear as research-use-only chemicals.
What research exists
Most published studies originate from Russian research institutions. Independent replication in Western peer-reviewed literature is limited, and large-scale controlled trials meeting FDA standards have not been conducted. This doesn't mean the compounds don't work — it means the evidence base most regulators would require doesn't currently exist in the public literature.
Practical unknowns
Long-term safety data outside the approved indications is thin. As with all research-labeled products, purity and concentration are not regulated or guaranteed.
Context
For cognitive and mood concerns, evaluated treatments exist and a physician can discuss them. That's the appropriate route rather than sourcing unapproved compounds online.
Last reviewed 2026-07-28 · how this page is sourced
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