Home / Compounds

Selank

Semax’s counterpart from the same Russian school: leaning towards calm rather than focus.

PropertyValue
TypePeptide, 7 amino acids
OriginTuftsin with a tail added
Research fieldTension, mood, sleep
Research statusClinically used in Russia
FormFreeze dried powder

What it is

Tuftsin is a small natural peptide from the immune system. Selank is that molecule with a short tail attached to shield it from enzymes.

How it works

The literature describes effects on GABA, the main inhibitory messenger in the brain, and on the balance of immune signalling substances involved in stress.

What the research shows

As with Semax, the centre of gravity of the literature lies in Russia. It is clinically applied there; elsewhere it is a research compound.

Research status

Registered in Russia, a research compound elsewhere.

Practical

An N-acetyl variant exists here too. In research Semax and Selank are regularly placed side by side because they work along different routes.

Looking for research material?

This site is made by the team behind Apex Bio Research, a Dutch supplier of research peptides with a certificate of analysis per batch.

Visit the shop
What this site is and is not
This site explains what the scientific literature says about peptides. It is not medical advice and not a set of instructions. The substances discussed here are research compounds: they are not approved for use in humans or animals. If you have a health question, see a doctor.

Updated 2026-10-03

Read next