Selank 5mg
$48.00
Selank 5mg is a premium synthetic heptapeptide and an analog of the endogenous immunomodulatory peptide Tuftsin. Each vial contains 5mg of high-purity Selank, specifically synthesized for laboratory research into neurochemistry, cognitive signaling, and stress response modulation.
| Property | Specification |
|---|---|
| Compound Name | Selank |
| CAS Number | 129954-34-3 |
| Vial Concentration | 5mg single compound |
| Sequence | Thr-Lys-Pro-Arg-Pro-Gly-Pro |
| Parent Peptide | Tuftsin (Thr-Lys-Pro-Arg) + Pro-Gly-Pro extension |
| Molecular Formula | C₃₃H₅₇N₁₁O₉ |
| Molecular Weight | ~751.9 g/mol |
| Class | Synthetic heptapeptide (anxiolytic / immunomodulatory) |
| Purity Rating | >99% (HPLC & MS verified) |
| Format | White lyophilized powder |
| Storage | -20°C, protected from light and moisture |
Selank 5mg for sale | Buy 99% Pure Anxiolytic Tuftsin Heptapeptide for Precision Research
Titration research needs precision, not surplus. When you’re mapping a dose-response curve or running early-phase titration work, a right-sized vial matters more than a big one — which is exactly what the Selank 5mg format delivers. It’s the standard-precision quantity of the tuftsin-derived neuropeptide that’s drawn so much attention for calming the nervous system without the sedative-hypnotic profile of traditional anti-anxiety drugs.
Selank 5mg is verified 99%+ pure, lyophilized, and built for focused neurochemistry and stress-response research. What makes this heptapeptide so studied is a genuinely unusual trait: it modulates anxiety and cognition through the central nervous system while sidestepping the sedation, tolerance, and dependence that define benzodiazepines (Regeneris research review, 2026). Here’s the science, the honest evidence picture, and where to buy it.
Scope note: research-grade material for in-vitro and laboratory research by qualified professionals only. Not FDA-approved (approved only in Russia), not for human or veterinary use, and nothing here is a dosing protocol.
Why the 5mg Format Suits Precision Work
The vial size should match the study. The Selank 5mg format is the right call when:
| Research Design | Why 5mg Fits |
|---|---|
| Dose-response modeling | Precise, controlled quantities for titration curves |
| Early-phase pilots | Enough for initial characterization without surplus |
| Single-condition studies | A focused amount for a defined experimental arm |
| Method development | Ideal for calibrating assays before scaling up |
Planning a long, multi-arm or high-frequency program? The 10mg vial gives you more runway. But for precise, defined research, Selank 5mg is the efficient choice.
The Tuftsin Heptapeptide, Briefly
Selank carries the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro — the immune tetrapeptide tuftsin (Thr-Lys-Pro-Arg) extended with three residues to stabilize it and prolong its central activity (Spartan Peptides, 2026). It was developed by the Institute of Molecular Genetics at the Russian Academy of Sciences, and that immune-peptide heritage gives it a dual character: it modulates both stress and inflammation, in one small molecule.
How Selank Modulates the Nervous System
Selank works through several complementary pathways rather than one blunt mechanism:
- Indirect GABAergic tone — it raises GABA-A receptor expression and stabilizes inhibitory signaling without binding the benzodiazepine site, which is why it calms without sedating.
- Monoamine modulation — it influences serotonin and other monoamine neurotransmitter systems tied to mood and stress.
- BDNF support — preclinical studies report increased hippocampal brain-derived neurotrophic factor, supporting neuroplasticity and cognition.
- Enkephalin stabilization — as a tuftsin derivative, it slows enkephalin breakdown, prolonging these endogenous mood-regulating peptides.
- Cytokine regulation — it lowers stress-driven pro-inflammatory cytokines like IL-6, connecting the stress and inflammation axes
For stress-resilience research especially, that combination — calming and anti-inflammatory and neuroplasticity-supporting — is what makes Selank such a compelling model compound.
Where Selank 5mg Fits in Research
| Research Focus | What’s Being Investigated |
|---|---|
| Dose-Response Modeling | Precision titration and initial-phase characterization |
| Neurotransmitter Investigation | Monoamine and GABAergic pathway modulation |
| Cognitive Enhancement | Memory consolidation and learning signals |
| Stress Resilience | Physiological regulation of environmental stress responses |
| Neurochemistry | CNS signaling without a sedative-hypnotic profile |
Expanded Technical Specifications
| Property | Specification |
|---|---|
| Compound Name | Selank |
| CAS Number | 129954-34-3 |
| Vial Concentration | 5mg single compound |
| Sequence | Thr-Lys-Pro-Arg-Pro-Gly-Pro |
| Parent Peptide | Tuftsin (Thr-Lys-Pro-Arg) + Pro-Gly-Pro extension |
| Molecular Formula | C₃₃H₅₇N₁₁O₉ |
| Molecular Weight | ~751.9 g/mol |
| Class | Synthetic heptapeptide (anxiolytic / immunomodulatory) |
| Purity Rating | >99% (HPLC & MS verified) |
| Format | White lyophilized powder |
| Storage | -20°C, protected from light and moisture |
The GLP1 Peptides Quality Standard
| Standard | What You Get |
|---|---|
| Verified 99%+ Purity | Every batch confirmed by HPLC and Mass Spectrometry |
| Advanced Lyophilization | Freeze-drying that protects the delicate 7-residue chain |
| Analytical Transparency | A batch-specific Certificate of Analysis (COA) with every order |
| Structural Accuracy | Exact sequencing for a consistent research analog |
For precision dose-response work, verified potency is non-negotiable — the COA is what makes your titration math trustworthy, confirming the exact Selank sequence in every vial.
How to Reconstitute & Store Selank 5mg
Full how-to, kept simple. Selank is water-soluble but benefits from careful handling.
- Reconstitute: warm the sealed vial to room temperature, add bacteriostatic or sterile water slowly down the inner glass wall (not onto the powder), swirl gently until dissolved (never shake), then aliquot into single-use portions.
- Store powder: -20°C, sealed, dark, dry — stable long-term.
- Store reconstituted: 2–8°C, protected from light, no freeze-thaw cycles.
- Inspect: discard anything cloudy or discolored.
Selank vs Semax vs Benzodiazepines
| Compound | Origin | Primary Action | Note |
|---|---|---|---|
| Selank (this product) | Tuftsin (IgG fragment) | Anxiety-first, cognitive support | No sedation/dependence; indirect GABAergic |
| Semax | ACTH(4-7) | Cognition-first, mood support | Dopaminergic/BDNF nootropic |
| Benzodiazepines | Synthetic drugs | Direct GABA-A agonism | Effective but sedating, dependence-forming |
The distinction: Selank is the anxiety-first peptide (often paired with the cognition-first Semax in research), and unlike benzodiazepines, it works around the GABA-A receptor rather than hitting it head-on — the whole reason it was designed
Selank 5mg for Sale — Shipping Worldwide
Our research-grade Selank 5mg ships as HPLC/MS-verified, COA-backed lyophilized vials, sealed and bench-ready. We fulfill orders for laboratories and independent researchers across the highest-demand markets:
- 🇺🇸 USA — fast domestic dispatch
- 🇨🇦 Canada — reliable cross-border delivery
- 🇩🇪 Germany (Deutschland) — trusted EU logistics
- 🇫🇷 France — secure European shipping
Deciding to buy Selank 5mg? It’s the right pick when you want a precise, verified quantity for dose-response or early-phase neuropeptide research — clean titration, backed by documentation you can trust.
FAQs about Selank 5mg
1. What is Selank 5mg? A 5mg vial of Selank, a synthetic tuftsin-derived heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro), supplied as a lyophilized powder for neurochemistry, cognition, and stress-response research.
2. Why choose the 5mg over the 10mg? The 5mg is the precision format — ideal for dose-response modeling, titration, and early-phase pilots. Step up to 10mg for longer, multi-arm, or high-frequency studies.
3. How does Selank calm anxiety without sedation? It raises GABA-A receptor expression indirectly rather than binding the benzodiazepine site, avoiding the sedation, tolerance, and dependence of benzodiazepines
4. What is Selank derived from? Tuftsin, an immunomodulatory fragment of immunoglobulin G, extended by three residues to stabilize it and extend its central activity.
5. Is Selank FDA approved? No — approved in Russia (2009) as an anxiolytic, but not in the US or EU. This research-grade material is for laboratory use only.
6. Does Selank affect neurotransmitters? Yes — it modulates GABAergic and monoamine (including serotonin) systems and supports hippocampal BDNF, which underpins its studied effects on mood and cognition.
7. How strong is the human evidence? The preclinical data is solid, but human trials are mostly Russian, small by Western standards, and not yet independently replicated — weigh findings accordingly
8. Does Selank have immune effects? Yes — from its tuftsin origin, it reduces stress-driven pro-inflammatory cytokines like IL-6 while preserving immune function.
9. How should Selank 5mg be stored? Lyophilized powder at -20°C, sealed and dark; reconstituted solution at 2–8°C, protected from light, freeze-thaw avoided.
10. How do you reconstitute Selank? Room-temperature vial, bacteriostatic or sterile water down the glass wall, gentle swirl, then aliquot. The how-to section above covers it.
11. What purity should Selank be? Aim for 99%+ verified by HPLC and Mass Spectrometry, with a lot-specific COA confirming the sequence. Ours ships with that.
12. Where can I buy Selank 5mg internationally? GLP1 Peptides ships research-grade, COA-verified Selank 5mg to the USA, Canada, Germany, and France in sealed lyophilized vials.







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