What Is Semax?
The cognition-research peptide explained.
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Compound guide
What Is Selank?
A short peptide studied in anxiety and immunomodulation research — what it is, how it works, and how it is handled.
Selank sits in the same family as Semax — a short, synthetic Russian research peptide studied for effects on the nervous system. Where Semax is grouped with cognition research, Selank is more associated with anxiety and immune-signalling research.
Research use only. This article is an educational overview of an investigational compound. It is not medical advice, makes no treatment or dosing recommendations, and does not describe human use.
What is Selank?
Selank is a synthetic heptapeptide based on a fragment of tuftsin, a naturally occurring immune-related peptide. It was developed in Russia and is supplied to researchers as a lyophilized powder for laboratory use only.
How does it work?
As a tuftsin analog, Selank is studied for its interaction with pathways involved in anxiety and immune signalling. It is classed among the anxiolytic research peptides for that reason.
What is it studied for?
Selank is studied in the context of anxiety, stress-response, and immunomodulation research. This is research context only and does not describe any effect in humans. It is frequently studied alongside Semax.
How is Selank handled in the lab?
Like most research compounds, Selank arrives as a lyophilized (freeze-dried) powder. Keep the sealed vial cool, dry, and out of light; reconstitute with bacteriostatic water (see how to reconstitute); then refrigerate the solution, where it stays stable for weeks.
Why purity matters
With an investigational compound, knowing exactly what is in the vial is everything. A reputable source provides a Certificate of Analysis (COA) showing third-party HPLC purity and mass-spec identity for that specific batch — see what is a COA.
Where to buy
Sourcing research-grade Selank
We recommend Vital Chems for tested compounds and bacteriostatic water.
- Third-party HPLC tested — COA on every order
- Same-day shipping before 1:30 PM PT
- US-based, fast and responsive support
Frequently asked questions
What is Selank?
A synthetic heptapeptide based on a fragment of tuftsin, studied in anxiety and immunomodulation research. Supplied as a lyophilized powder for research use only.
How does Selank work?
As a tuftsin analog, it is studied for its interaction with pathways involved in anxiety and immune signalling.
What is the difference between Selank and Semax?
Both are short Russian research peptides. Semax is grouped with cognition/neuroprotection research; Selank is more associated with anxiety and immune-signalling research.
Is Selank for human use?
No. It is supplied strictly for research and laboratory use only, not for human or animal consumption.