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iberialabs
COMPOUND · SEL-051326102% FILL
selank 10 mg
Cognitive
EXP: 05/2028

selank

Positively modulates the GABAA receptor and induces BDNF, resulting in anxiety reduction, memory enhancement, and greater mental plasticity without causing sedation.

LOT:SEL-051326
CALCULATOR↗LAB REPORT (COA)↗
OUT OF STOCK0 VIALS AVAILABLE IN STOCK
100% EU Delivery Guarantee— free reshipment if lost
24h EU dispatch from Spain · Zero customs risk
HPLC certified purity >99% on every batch
FOR LABORATORY USE ONLY — NOT FOR HUMAN CONSUMPTION. SHIPS FROM THE EU WITHIN 24 H, EU DELIVERY 3-7 DAYS, SPAIN 1-3 DAYS.

what the literature shows.

A condensed monograph drawn from preclinical and clinical literature, cited mechanisms, specifications and the research case for selank.

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Selank: The Tuftsin-Derived Peptide for GABAergic and Immune Regulation

Selank is a synthetic heptapeptide that acts as a mild anxiolytic, cognitive enhancer, and immune modulator.49

Structural Parameters of Selank

PropertyValue and SpecificationReferences
CAS Number129954-34-352
Molecular FormulaC33H57N11O952
Molecular Weight751.87 g/mol52
SequenceThr-Lys-Pro-Arg-Pro-Gly-P ro (Tuftsin-PGP)49
Mode of ActionIndirect GABAA receptor modulator49

Origin, History, and Research Stage

Selank was developed in the 1990s by the Institute of Molecular Genetics of the Russian Academy of Sciences in collaboration with the V.V. Zakusov Institute of Pharmacology . Researchers sought to stabilize tuftsin, an endogenous immunomodulatory peptide, to create an effective neuropsychiatric treatment.49 Selank was approved in Russia in the late 2000s for the treatment of Generalized Anxiety Disorder (GAD) and asthenic conditions . It has been utilized in clinical settings across Eastern Europe, though it is not approved by the US FDA or EMA.55

Mechanism of Action and Pharmacokinetics

Selank is a heptapeptide containing the sequence of the human tetrapeptide tuftsin (Thr-Lys-Pro-Arg), stabilized at its C-terminus by the addition of three amino acids (Pro-Gly-Pro).49 This PGP sequence prevents enzymatic degradation, extending its half-life in human plasma.49 Unlike benzodiazepines, Selank does not bind directly to the benzodiazepine site of the receptor.49 Instead, it upregulates the mRNA expression of the alpha2, alpha3, and gamma2 subunits of the GABAA receptor in the hippocampus . This indirect modulation restores inhibitory tone under stress.49 Additionally, Selank inhibits enkephalin-degrading enzymes, such as aminopeptidase N (APN) and dipeptidyl peptidase IV (DPP-IV), raising plasma levels of endogenous enkephalins.49 It also balances monoamines (serotonin and dopamine) and suppresses the elevated interleukin-6 (IL-6) gene expression observed in patients with anxiety.49

Scientific and Clinical Effects

In clinical trials, intranasal Selank (400 mcg, 3x daily) reduced scores on the Hamilton Anxiety Scale (HAM-A) by day 7 without causing sedation, memory impairment, or physical dependence.49 It acts as a stress-protector, neutralizing stress-induced BDNF depletion.49 Furthermore, due to its tuftsin lineage, Selank enhances immune resilience by stimulating phagocytosis, NK cell activity, and IFN-gamma expression.49

Verified Reviews.

4.0 / 5.0
★★★★★
Based on 1 reviews
1 total reviews
★★★★★
🇪🇸Apr 29, 2026

Great for my Medicine final exams.

Exceptional service, top-notch peps. Also pretty cheap. 6 days to Fr.

Purchased Items:

• 1x Selank 10mg
• 1x Semax 10mg
• 1x BAC Water 10ml.
E
Emma Novak
Nantes, France✓ Verified
/ FREQUENTLY ASKED QUESTIONS & PROTOCOLS

Frequently asked questions about selank.

Technical reconstitution protocols, HPLC purity verification, storage conditions, and express European delivery details.

selank is brought into solution using the diluent specified on its technical datasheet: sterile bacteriostatic water or 0.9% NaCl. Insert the syringe and direct the stream gently against the inner vial wall. Swirl smoothly with circular motions rather than shaking vigorously, as mechanical agitation can shear delicate peptide chains. Once reconstituted, it remains stable refrigerated at 2–8 °C for up to 28 days.

At Iberia Labs, every batch of selank is verified by High-Performance Liquid Chromatography (HPLC) at ≥ 99.906% purity, with bacterial endotoxin levels strictly under 0.5 EU/mg and identity confirmed by Mass Spectrometry (MS). Each batch is backed by its lot-specific Certificate of Analysis (current lot: SEL-051326).

Lyophilized selank in vacuum-sealed vials should be stored at -20 °C, protected from light and moisture, with an unopened shelf life of 24 to 36 months. The sealed powder readily tolerates ambient temperature during transit without loss of potency. Upon receipt, transfer immediately to cold storage (-20 °C unopened, or 2–8 °C once reconstituted).

selank is available directly from Iberia Labs (iberialabs.eu), dispatched from warehouses within the European Union and Spain. Because shipments originate within the EU single market, orders are completely free from customs clearance delays. Orders dispatch within 24 hours, with 24–72 hour delivery in Spain and 2–5 business days across Europe.

Yes, selank may be legally purchased in Spain and throughout the European Union strictly for laboratory research, chemical analysis, and in-vitro or preclinical investigation (RUO). Iberia Labs supplies analytical-grade reagents exclusively to the scientific and research community. It is not an approved medicine and is not intended for human or animal consumption, nor for clinical diagnostics.

selank is available in individual vials (10 mg) starting at €35.95. Every order includes its verified lot-specific Certificate of Analysis at no extra cost. Prices are quoted in EUR and express shipping options are transparently calculated at checkout.

All confirmed orders of selank are dispatched within 24 business hours from our EU fulfillment facilities. Delivery across mainland Spain takes 24–72 hours via express courier. International European destinations arrive within 2–4 business days with secure and discreet packaging.

Yes. Every vial of selank is accompanied by an authentic Certificate of Analysis (CoA) for the current batch (SEL-051326). The report documents HPLC purity chromatograms, mass spectrometry identity validation, and endotoxin assays. You can view and download the full laboratory report directly in our Lab Report (CoA) section.