Semax vs Selank
Two Russian-developed neuropeptides with distinct research profiles.
The short answer: Semax derives from ACTH and is studied for cognition; Selank derives from tuftsin and for anxiety.
Side by side
| Property | Semax | Selank |
|---|---|---|
| Research category | Neuro Research | Neuro Research |
| Presentation | 10mg vial | 10mg vial |
| Dosage options | 10mg | 10mg |
| Approved medicine using it | None — investigational | None — investigational |
| Availability | Low stock | In stock |
| Batch COA | Supplied with order | Supplied with order |
| From | €37.90 | €37.90 |
How they differ
Semax is an analog of the ACTH(4-10) fragment, modified to resist enzymatic breakdown. Its research literature centres on neuroprotection, BDNF expression and cognitive endpoints.
Selank is a synthetic analog of tuftsin, an immunomodulatory peptide fragment. Its literature centres on anxiolytic endpoints and on GABAergic and serotonergic signalling.
Both originated at the same Russian institute and share a delivery route in the published work, which is why they are so often mentioned together despite targeting unrelated endpoints.
At the bench
Both are short peptides supplied lyophilised. Their shared origin means much of the published work uses the same delivery route and the same assessment scales, which makes the two literatures unusually easy to read side by side.
What this comparison does not settle
A large share of the published work on both comes from a small number of institutions and is not widely replicated elsewhere. Weigh the body of evidence accordingly.
Common questions
What is the difference between Semax and Selank?
Semax derives from ACTH and is studied for cognition; Selank derives from tuftsin and for anxiety. Two Russian-developed neuropeptides with distinct research profiles.
Is Semax or Selank better?
Neither, and the question does not have a general answer. They are compared here on mechanism rather than merit. A large share of the published work on both comes from a small number of institutions and is not widely replicated elsewhere. Weigh the body of evidence accordingly.
Which of the two has more published data?
Neither has an approved formulation — both are investigational, and the published work on each is correspondingly narrower.
For research use only. Not for human consumption, diagnostic, therapeutic or veterinary use. Brand names are trademarks of their respective owners and are referenced only to identify the active compound — no affiliation or equivalence is claimed.