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Selank
Selank is a synthetic peptide studied for its ability to reduce anxiety, enhance cognitive function, and support immune regulation without the sedation or dependency risks of traditional anxiolytics.
Quantity: 1
All peptides arrive in powdered form for stability.
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Each batch is tested and certified to meet or exceed 99% purity standards.
Made in the USA
Produced in United States WHO/GMP and ISO 9001:2015 certified facilities.
Rigorous Quality Control
Double-tested to ensure the highest quality for the most effective research.
What is Selank?
Selank is a synthetic heptapeptide based on the naturally occurring tetrapeptide tuftsin, which is involved in immune function. Developed by the Institute of Molecular Genetics in Russia, Selank has been studied for its anxiolytic (anti-anxiety), nootropic (cognitive-enhancing), and immune-modulating effects. It's classified as a neuropeptide and is typically administered intranasally for rapid central nervous system absorption.
Potential Benefits Shown in Studies
- Reducing anxiety and stress without sedation
- Enhancing focus, clarity, and mental performance
- Supporting memory and learning processes
- Improving mood and emotional stability
- Strengthening immune system response
- Regulating serotonin and dopamine levels
- Reducing symptoms of fatigue and mental fog
Mechanisms of Action
Selank works by:
- Modulating GABA neurotransmission, enhancing the brain's calming response
- Increasing levels of serotonin and dopamine, improving mood and focus
- Regulating the balance of cytokines, contributing to immune system support
- Protecting against oxidative stress and mental fatigue
- Enhancing BDNF (brain-derived neurotrophic factor), supporting neural plasticity
It produces a tranquilizing effect without sedation, cognitive dulling, or dependence — unlike many pharmaceutical anxiolytics.
Molecular Structure of Selank

Sequence
Thr-Lys-Pro-Arg-Pro-Gly-Pro
Molecular Properties
Selank Research Highlights
Selank modulates the balance of monoamines such as GABA, serotonin, and dopamine, and has been shown to increase BDNF expression in the rat hippocampus—supporting mood and neuroplasticity.
Source: wikipedia
Selank inhibits enzymes that degrade enkephalins, thereby enhancing endogenous calming peptides and reducing anxiety-like behavior in animal models.
Source: wikipedia
In rodent models of chronic stress, Selank alleviated depression-like behavior and improved memory and cognitive performance.
Source: peptidesource
Selank influences cytokine expression—such as IL‑6—and regulatory genes tied to immune function, suggesting both immunomodulatory and neuroprotective properties.
Source: wikpedia