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.

Selank is not FDA-approved and is classified as a research peptide. This content is intended for educational and informational purposes only.

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.

Research Highlights

Regulates Neurotransmiters and Enhances BDNF Expression

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

Inhibits Enkephalin-Degrading Enzymes for Anxiolytic Effects

Selank inhibits enzymes that degrade enkephalins, thereby enhancing endogenous calming peptides and reducing anxiety-like behavior in animal models.

Source: wikipedia

Supports Stress Resilience & Cognitive Function

In rodent models of chronic stress, Selank alleviated depression-like behavior and improved memory and cognitive performance.

Source: peptidesource

Immune System Modulation & Anti-inflammatory Effects

Selank influences cytokine expression—such as IL‑6—and regulatory genes tied to immune function, suggesting both immunomodulatory and neuroprotective properties.

Source: wikpedia