Selank 5mg (Anxiolytic Heptapeptide) Lab Grade Research Peptide — 99%+ Purity

Selank is a synthetic heptapeptide (7-amino-acid peptide) derived from the N-terminal sequence of thymosin alpha-1, originally developed in Russia for anxiolytic and nootropic research. Selank is studied extensively for its ability to reduce anxiety and stress, enhance cognitive function, and modulate neuroimmune signaling. This Selank 5mg lyophilized research peptide is a valuable tool for preclinical investigations of anxiety disorders, stress resilience, cognitive performance, and neuroimmune regulation in research models.

What Is Selank?

Selank (also known as Selank™, SelanKor) is a synthetic heptapeptide consisting of seven amino acids derived from the active N-terminal region of thymosin alpha-1, an endogenous immune-regulating peptide. Originally developed and characterized by Russian Institute of Pharmacology, Selank was identified as having distinct anxiolytic (anti-anxiety) and nootropic (cognitive-enhancing) properties independent of the full-length thymosin alpha-1 molecule. Selank represents a selective tool for studying the neuroimmune and anxiolytic compartment of thymosin signaling, with research documenting effects on anxiety regulation, stress resilience, cognition, and neuroinflammation without the broader immunomodulatory effects of intact thymosin alpha-1.

Selank Mechanisms of Action

Selank operates through multiple neurobiological pathways to regulate anxiety, stress, and cognitive function. The peptide modulates central serotonergic, GABAergic, and dopaminergic neurotransmitter systems, enhancing inhibitory (GABA) tone and reducing hyperarousal in anxiety-related brain circuits. Key mechanisms include activation of benzodiazepine-like receptor subtypes, enhanced GABA-A receptor function, and modulation of monoamine oxidase (MAO) enzymes that regulate neurotransmitter catabolism. Additionally, Selank exhibits anti-inflammatory and neuroimmune effects: it modulates cytokine production (reducing pro-inflammatory IL-6, TNF-α, IL-1β), enhances neuroprotection through microglial modulation, and may activate brain-derived neurotrophic factor (BDNF) signaling supporting neuroplasticity. Selank also interacts with stress hormone systems, modulating corticotropin-releasing factor (CRF) signaling and HPA axis function, supporting stress resilience.

Selank Research Applications

Preclinical and translational research documents Selank investigation for:

• Anxiety disorders and anxiolytic efficacy
• Stress resilience and stress recovery
• Cognitive function and memory enhancement
• Mood regulation and depression-like models
• Learning and cognitive flexibility
• Neuroinflammation and cytokine modulation
• Neuroprotection and neurodegeneration
• HPA axis and stress hormone regulation
• Neuroimmune signaling and immune tolerance
• Sleep quality and sleep-anxiety relationships
• Aging-related cognitive decline
• Anxiety-induced physiological stress markers

Selank vs. Other Anxiolytic Peptides

Conventional anxiolytic medications (benzodiazepines, SSRIs) target single neurotransmitter systems and are associated with sedation, tolerance, and dependence risk. Selank operates through multi-system neuromodulation (serotonin, GABA, dopamine, neuroimmune) and research suggests it does not produce sedation, tolerance, or dependence liability. Additionally, Selank exhibits neuroprotective and anti-inflammatory properties distinct from pharmacological anxiolytics. Unlike anxiolytic drugs that primarily suppress anxiety symptoms, Selank research suggests it may enhance cognitive function and learning simultaneously—a neurobiological profile distinct from conventional anxiolytics. This makes Selank a unique tool for studying anxiety-cognition relationships and for investigator-initiated research seeking anxiety reduction without cognitive impairment.

Selank and Stress Physiology

Acute and chronic stress dysregulates the hypothalamic-pituitary-adrenal (HPA) axis through corticotropin-releasing factor (CRF) signaling, leading to excess glucocorticoid secretion, anxiety escalation, cognitive impairment, immune dysfunction, and disease susceptibility. Selank research demonstrates reduction of HPA hyperactivity, normalization of stress hormone secretion, and restoration of stress resilience—the capacity to adapt to and recover from stress exposure. Selank's combined anxiolytic, cognitive-enhancing, and anti-inflammatory effects suggest it addresses multiple neurobiological consequences of chronic stress, making it valuable for studying stress adaptation and resilience in preclinical models.

Selank Specifications

Quality Verification

• HPLC purity verification (≥99%)
• Mass spectrometry sequence and identity confirmation
• Amino acid composition analysis
• Endotoxin and microbial contamination testing
• Certificate of Analysis (COA) included with every order

Reconstitution & Handling

Selank 5mg is reconstituted with bacteriostatic water for laboratory research. Add the diluent slowly down the inside wall of the vial to ensure complete dissolution without foaming. Once reconstituted, store the solution at 2-8°C and protect from light. Prepare aliquots to avoid repeated freeze-thaw cycles. Always follow institutional protocols for peptide handling, storage, and documentation in compliance with research regulations.

Frequently Asked Questions

What is Selank and how does it work?

Selank is a synthetic 7-amino-acid peptide derived from thymosin alpha-1 that reduces anxiety, enhances cognition, and modulates neuroimmune signaling. It works by enhancing GABAergic (inhibitory) neurotransmission, modulating monoamine systems (serotonin, dopamine), reducing neuroinflammation, and normalizing stress hormone signaling.

How is Selank different from benzodiazepines?

Unlike benzodiazepines, Selank research does not show sedation, tolerance, or dependence liability. Selank enhances cognitive function while reducing anxiety, and modulates neuroimmune and anti-inflammatory pathways that benzodiazepines do not target. Selank offers a multi-system anxiolytic approach distinct from single-target pharmacological agents.

What is the purity of CoreVionRX Selank?

CoreVionRX Selank 5mg is ≥99% purity, verified by HPLC and confirmed by mass spectrometry. Sequence identity and amino acid composition are verified. Each batch includes a Certificate of Analysis documenting purity, molecular weight, and sterility testing.

How should Selank be stored and reconstituted?

Store the lyophilized vial at -20°C for maximum stability. Reconstitute with bacteriostatic water by adding slowly down the vial wall. After reconstitution, store at 2-8°C, protect from light, and prepare small aliquots to avoid freeze-thaw cycles.

Selank is supplied strictly for laboratory and research use only. Not for human or animal consumption.