Research-grade compound. Laboratory use only. Not intended for human or animal use, ingestion, or injection. No medical claims are made or implied.
Cyclic and Neuropeptide Research CompoundsSKU: CP-SEL
Selank
≥98% PuritySupplier batch spec; selected lots Janoshik-tested
Janoshik Verified
99.79% HPLC
10mg · Report #123935
Related PeptidesDB entry (same owner)
peptidesdb.org
/p/selank
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Size5mg
€29.99
1
Total: €29.99
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Selank is a synthetic heptapeptide derived from the endogenous immunomodulatory peptide tuftsin. It has been extensively studied for its anxiolytic-like properties and effects on neuropeptide expression in research models. Tuftsin-derived anxiolytic peptide analog Enkephalin metabolism and neuropeptide studies Immune modulation and CNS receptor binding markers research For research purposes only.
Volume PricingApplied automatically at checkout
| Quantity | Price Each | Total | Savings |
|---|---|---|---|
| 1 unit | €29.99 | €29.99 | -- |
| 3+ | €28.49 | €85.47 | 5% off |
| 5+Most Popular | €26.99 | €134.95 | 10% off |
| 10+ | €25.49 | €254.92 | 15% off |
Important Notice
This product is intended for laboratory and research use only. Not for human or veterinary use. By purchasing, you confirm this product will be used exclusively for in-vitro research purposes.
Reconstitution Required
This peptide ships lyophilized (dry powder) and requires bacteriostatic water to reconstitute before use. BAC water is sold separately.
Recommended: BAC water · stable for 21 days at 2-8°C once mixed.
When This Product May Not Suit Your Research
- ⚠If your research requires a compound with extensive Western clinical data — Selank is primarily studied in Russian literature.
- ⚠If your protocol needs a long-acting compound — Selank has a short plasma half-life requiring frequent administration.
- ⚠If your lab cannot verify Russian-language primary sources — much of the foundational research is not in English.
Purity HPLC
99.4% average HPLC purity across our published lab reports
Janoshik Verified
View report #123935 on janoshik.com →
Fast Shipping
24h dispatch, EU-wide shipping from €4.99
Third-Party Tested
Supplier batch specification on every product; independent Janoshik report on selected lots
Last reviewed: 2026-07-23
About Selank
About Selank
Selank (CAS: 129954-34-3) is a synthetic heptapeptide analog of the naturally occurring immunomodulatory peptide tuftsin (threonyl-lysyl-prolyl-arginine). Developed by the Institute of Molecular Genetics of the Russian Academy of Sciences, Selank incorporates a stabilizing Pro-Gly-Pro sequence attached to tuftsin, enhancing its metabolic stability and biological activity in experimental settings.
Mechanism of Action
Selank modulates the expression and metabolism of endogenous enkephalins and their associated enzymes. Research indicates it influences the balance between enkephalin-degrading carboxypeptidase activity and enkephalin-synthesizing enzyme activity. This peptide has been shown to affect GABAergic neurotransmission and monoamine systems, including serotonin and dopamine pathways. Its tuftsin backbone also provides immunomodulatory properties through interaction with phagocytic cells and cytokine regulation.
Published Research
- Seredenin, S. B., et al. (2008). Anxiolytic effect of Selank in experimental models. Bulletin of Experimental Biology and Medicine. DOI: 10.1007/s10517-008-0156-y
- Zozulya, A. A., et al. (2008). The inhibitory effect of Selank on enkephalin-degrading enzymes as a possible mechanism of its anxiolytic activity. Biochemistry (Moscow). DOI: 10.1134/S0006297908020119
Product Specifications
- Molecular Weight: 751.9 Da
- CAS Number: 129954-34-3
- Sequence: Thr-Lys-Pro-Arg-Pro-Gly-Pro (Tuftsin analog)
- Purity: ≥98% (supplier batch spec; 99.4% avg across independently tested lots)
- Form: Lyophilized powder
- Storage: -20°C, protected from light
Shipped to a ≥98% supplier batch specification; selected lots are independently tested by Janoshik Analytical (HPLC + mass spectrometry; 99.4% average purity across published reports), searchable by batch code at certapeptides.com/verify.
This product is intended for laboratory research use only. Not for human consumption. Not a drug, food, or cosmetic. CertaPeptides does not condone or encourage any off-label use.
Specification Summary
FormLyophilized Powder
Storage-20\u00B0C
About Selank
About Selank
Selank (CAS: 129954-34-3) is a synthetic heptapeptide analog of the naturally occurring immunomodulatory peptide tuftsin (threonyl-lysyl-prolyl-arginine). Developed by the Institute of Molecular Genetics of the Russian Academy of Sciences, Selank incorporates a stabilizing Pro-Gly-Pro sequence attached to tuftsin, enhancing its metabolic stability and biological activity in experimental settings.
Mechanism of Action
Selank modulates the expression and metabolism of endogenous enkephalins and their associated enzymes. Research indicates it influences the balance between enkephalin-degrading carboxypeptidase activity and enkephalin-synthesizing enzyme activity. This peptide has been shown to affect GABAergic neurotransmission and monoamine systems, including serotonin and dopamine pathways. Its tuftsin backbone also provides immunomodulatory properties through interaction with phagocytic cells and cytokine regulation.
Published Research
- Seredenin, S. B., et al. (2008). Anxiolytic effect of Selank in experimental models. Bulletin of Experimental Biology and Medicine. DOI: 10.1007/s10517-008-0156-y
- Zozulya, A. A., et al. (2008). The inhibitory effect of Selank on enkephalin-degrading enzymes as a possible mechanism of its anxiolytic activity. Biochemistry (Moscow). DOI: 10.1134/S0006297908020119
Product Specifications
- Molecular Weight: 751.9 Da
- CAS Number: 129954-34-3
- Sequence: Thr-Lys-Pro-Arg-Pro-Gly-Pro (Tuftsin analog)
- Purity: ≥98% (supplier batch spec; 99.4% avg across independently tested lots)
- Form: Lyophilized powder
- Storage: -20°C, protected from light
Shipped to a ≥98% supplier batch specification; selected lots are independently tested by Janoshik Analytical (HPLC + mass spectrometry; 99.4% average purity across published reports), searchable by batch code at certapeptides.com/verify.
This product is intended for laboratory research use only. Not for human consumption. Not a drug, food, or cosmetic. CertaPeptides does not condone or encourage any off-label use.
What research shows
Selected peer-reviewed studies from the published literature. Each describes laboratory or preclinical findings and is attributed to the cited study, not to this product. For research use only — not medical guidance.
[1]
Anxiolytic mechanism
In preclinical research, the molecular aspects of the heptapeptide Selank's biological activity were reviewed in the context of peptide-based anxiolytics.
Peptide-based Anxiolytics: The Molecular Aspects of Heptapeptide Selank Biological Activity. Protein and Peptide Letters (2018). PMID: 30255741[2]
Immunomodulation
In laboratory research, the tuftsin analogue Selank altered the temporal dynamics of inflammation-related gene expression.
The temporary dynamics of inflammation-related genes expression under tuftsin analog Selank action. Molecular Immunology (2014). PMID: 24291245[3]
Neurofunctional effects
In laboratory research, a functional connectomic approach was used to study the effects of Selank and Semax on brain activity.
Functional Connectomic Approach to Studying Selank and Semax Effects. Doklady Biological Sciences (2020). PMID: 32342318Citations are provided for research reference. CertaPeptides (CERTALAB S.R.L.) is a reseller, not a manufacturer, and makes no medical, therapeutic, or efficacy claims. Products are for laboratory research use only and are not for human or animal consumption.
Researcher Confidence
Why researchers choose CertaPeptides
Who actually tests this?
Selected lots are independently verified by Janoshik Analytical (Czech Republic) and published on the Janoshik public portal. Other lots ship with the supplier's batch specification. See /coa for the published wall.
View COAs →What if I get the wrong batch?
Every bottle label carries a lot number that maps to a specific Certificate of Analysis. If a batch fails spec, we don't ship it — full stop.
View COAs →Where does it ship from?
Romania (EU). We are CERTALAB SRL, CUI 54169956, VAT-registered. Sameday for Romania, GLS for most EU destinations, TCE Worldwide for the remaining cross-border EU and non-EU markets (UK, Switzerland, Iceland, Israel, Serbia). Delivery 1–15 business days depending on destination — exact window shown at checkout.
Shipping details →What if there's a problem?
You have a 14-day withdrawal right under OUG 34/2014 (Romanian/EU consumer law), with ANPC/ODR escalation available. Contact us at support@certapeptides.com.
Returns policy →Product Information
This product is intended for scientific research and development purposes only. It is a chemical substance that shall not be used as a drug, medicine, active substance, or ingredient in any product intended for human or animal consumption. Researchers must handle this compound in accordance with their institutional biosafety guidelines. Use only in properly equipped laboratory settings with appropriate personal protective equipment.
Frequently Asked
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Frequently researched together
Combined Price
€153.46
Selank€29.99