Selank - Research Profile & Reviews

Research Overview

Selank is a synthetic heptapeptide developed at the Institute of Molecular Genetics of the Russian Academy of Sciences. It is based on the naturally occurring immunomodulatory peptide tuftsin (Thr-Lys-Pro-Arg) with the addition of a Pro-Gly-Pro sequence that enhances its stability and biological activity. Selank is approved in Russia as a pharmaceutical drug for the treatment of generalized anxiety disorder and neurasthenia.

The peptide's mechanism of action involves modulation of several neurotransmitter systems. It influences the balance of serotonin, dopamine, and norepinephrine in the brain, while also affecting the expression of brain-derived neurotrophic factor (BDNF) and the enkephalin system. Selank has been shown to inhibit the enzymes that degrade enkephalins, thereby prolonging their anxiolytic effects. It also modulates the expression of approximately 50 genes related to GABAergic neurotransmission.

Clinical studies in Russia have demonstrated Selank's efficacy as an anxiolytic comparable to benzodiazepines but without the sedation, cognitive impairment, or addiction potential associated with those drugs. Research has also shown improvements in cognitive function, including enhanced learning, memory consolidation, and attention. Additional studies have revealed immunomodulatory properties, including antiviral effects and modulation of cytokine expression, linking its cognitive and immune benefits.

Documented Research Effects

Cognitive Function Immune Support Sleep Quality

Dosage & Protocol

Typical Dose Range

250 – 750

mcg per dose

Frequency

1-3x daily (intranasal)

Cycle Length

2-4 weeks on, 2 weeks off

Common Vial Sizes

5

Calculate exact draw volumes and reconstitution steps.

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Dosage information is for research reference only. Always follow established research protocols. Not medical advice.

Storage & Handling

Lyophilized Powder

Temperature -20°C

Shelf Life 2+ years

Reconstituted Solution

Temperature 2-8°C

Shelf Life 2-4 weeks

Frequently Asked Questions

Selank modulates the GABAergic system (similar to benzodiazepines but without sedation or dependency), increases brain-derived neurotrophic factor (BDNF), balances serotonin and norepinephrine levels, and modulates the expression of IL-6 and other inflammatory cytokines involved in mood regulation. It is classified as an anxiolytic peptide in Russia, where it has been approved as a prescription medication for anxiety and neurasthenia.

Selank is most commonly administered intranasally, which provides rapid absorption through the nasal mucosa and quick onset of effects (within 5-15 minutes). Intranasal sprays with a concentration of 0.15% are the standard pharmaceutical form in Russia. It can also be administered via subcutaneous injection, though intranasal delivery is preferred for its convenience and rapid CNS penetration.

No, Selank does not cause sedation, cognitive impairment, or dependency, which distinguishes it from benzodiazepines and many other anxiolytic medications. Research indicates no withdrawal symptoms, tolerance development, or addiction potential even with extended use. Users typically report anxiolytic effects with maintained or improved cognitive clarity and focus.

Yes, Selank and Semax are frequently combined in nootropic protocols. Selank provides anxiolytic and calming effects while Semax enhances focus, motivation, and cognitive performance. Together they create a balanced cognitive enhancement stack with reduced anxiety. A common protocol is Selank in the morning and evening for anxiety management, with Semax in the morning and early afternoon for cognitive enhancement.

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