Selank is a synthetic heptapeptide analog of tuftsin developed in Russia. It has been studied mainly for anxiolytic, cognitive, and immunomodulatory effects, often via intranasal use.

What are the potential benefits of Selank?

Limited research suggests Selank may reduce anxiety and stress, support attention and memory under stress, and modulate immune signaling. Evidence quality and availability vary, and many findings come from small or regional studies.

What is a typical Selank dosage range?

Commonly referenced dosing ranges are about 200–3000 mcg, often used intranasally. Individual response and protocols vary, and clinical guidance is limited outside research settings.

Is Selank sedating or addictive like benzodiazepines?

Selank is generally described as non-sedating and not associated with dependence in the limited clinical literature available. However, long-term safety data are limited.

What are possible side effects or safety concerns with Selank?

Human safety data are limited, and product quality can vary because it is often sold as a research peptide. People should be cautious with allergies, pregnancy or breastfeeding, and interactions with other CNS-active or immune-modulating therapies.

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Selank

Limited research available·3/10

A higher score indicates better study conditions, but not necessarily effectiveness.

Selank is a synthetic peptide with anxiolytic, cognitive-enhancing, and immunomodulatory effects, primarily studied in Russia for intranasal use.

Anti-inflammatory Cognitive Enhancement Stress Relief Immune Booster Neuroprotective Anxiety Relief

dose range

200–3000 µg

1–3 divided intranasal doses daily

Consumption

Administer intranasally using a peptide spray or drops.

Not fat-soluble.

Best time

Often taken in the morning or as needed for stress; no established best time of day.

Description

Selank is a heptapeptide analog of tuftsin developed in Russia for its potential benefits in anxiety reduction, cognitive enhancement, and immune regulation. Unlike many traditional anxiolytics, Selank is non-sedating and shows no risk for addiction.

benefits

Main effects with level of evidence

Limited

Note on evidence

Clinical research on Selank is mostly from Russia and limited in sample size, with some human trials and more extensive animal studies. Long-term safety and efficacy data are lacking outside these settings.

Reduces symptoms of anxiety and stress

Limited

Selank shows anxiolytic effects comparable to benzodiazepines but without sedation or dependency risks in small clinical trials.

Particularly relevant for: Adults with mild-to-moderate anxiety · Individuals under stress

1 · PubMed: Anxiolytic and neuropsychotropic activity of Selank

Enhances cognitive performance under stress

Limited

Selank may improve learning, memory, and attention, especially in stressful situations, as shown in limited studies.

Particularly relevant for: Adults seeking mental clarity · Individuals in high-pressure roles

2 · PubMed: Effects on cognitive processes

Supports immune system modulation

Limited

Selank demonstrates immunomodulatory and mild anti-inflammatory activity, normalizing certain cytokines and supporting antiviral defense in models.

Particularly relevant for: Individuals seeking immune support

3 · PubMed: Immunomodulatory properties of Selank

May help protect brain cells from damage

Limited

Neuroprotective effects observed in animal studies suggest a potential role in reducing inflammation-related neural harm.

Particularly relevant for: People at risk of neuroinflammation

3 · PubMed: Immunomodulatory properties of Selank

Safety & Information

Important safety information & known risks

For educational purposes only • not medical advice

Generally well-tolerated in available studies, but long-term safety and use outside clinical research are unclear.

warning notices

Mild nasal irritation and headache are most reported side effects.
No sedative or withdrawal effects documented at typical doses.
Safety in pregnancy, breastfeeding, and children is unknown.
Avoid use during pregnancy or breastfeeding due to lack of safety data.
Avoid if you have a known peptide allergy.
Do not use without medical supervision if you have a history of psychiatric or neurological disorders.
Monitor for interactions if you are taking CNS-active medications (antidepressants, anxiolytics, sedatives).

Known interactions with medications

CNS-active medications (potential additive or unpredictable CNS effects)

Contraindications / special precautions

Known allergy to Selank or peptide drugs
Pregnancy or breastfeeding
Severe psychiatric or neurological disorders without clinician supervision

interactions

Important interactions between active ingredient ↔ supplement / medication / food

Potential for interactions with other CNS-acting medications; clinical monitoring is advisable when co-administered.

May potentiate or alter effects of CNS-active drugs

drug · CNS-active medications

CautionLimited

Why

Selank modulates central neurotransmitters; combination could lead to unpredictable effects.

recommendation

Consult a clinician before combining with antidepressants, anxiolytics, sedatives, or antipsychotic medications.

1 · PubMed: Anxiolytic and neuropsychotropic activity of Selank 4 · PubMed: Clinical safety of Selank administration

mechanisms of action

Brief explanations of how it works

Modulation of brain neurotransmitters

Selank influences balance of serotonin, dopamine, and enkephalin pathways, contributing to its anxiolytic and cognitive effects.

1 · PubMed: Anxiolytic and neuropsychotropic activity of Selank 2 · PubMed: Effects on cognitive processes

Immunomodulation

Regulates cytokine expression and stimulates antiviral immune pathways, supporting immune response and reducing inflammation.

3 · PubMed: Immunomodulatory properties of Selank

Sources & References

Primary literature and reviews on which these statements are based

4 sources

PubMed: Anxiolytic and neuropsychotropic activity of Selank

PubMed: Effects on cognitive processes

PubMed: Immunomodulatory properties of Selank

PubMed: Clinical safety of Selank administration

Last updated: January 31, 2026

This information is for educational purposes only and does not replace medical advice.