Product Usage: This PRODUCT IS INTENDED AS A RESEARCH CHEMICAL ONLY. This designation allows the use of research chemicals strictly for in vitro testing and laboratory experimentation only. All product information available on this website is for educational purposes only. Bodily introduction of any kind into humans or animals is strictly forbidden by law. This product should only be handled by licensed, qualified professionals. This product is not a drug, food, or cosmetic and may not be misbranded, misused or mislabeled as a drug, food or cosmetic

Selank
Selank
$46.00 – $57.00Price range: $46.00 through $57.00 Select options
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Selank

Price range: $46.00 through $57.00

Research-grade Selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro), a synthetic heptapeptide analog of tuftsin with anxiolytic and nootropic properties, designed for controlled investigations of GABA/BDNF modulation, stress resilience, immune function, and cognitive enhancement.

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Selank is a synthetic heptapeptide developed by the Institute of Molecular Genetics, Russian Academy of Sciences, as an improved analog of the immunomodulatory peptide tuftsin (Thr-Lys-Pro-Arg). The addition of Pro-Gly-Pro at the C-terminus dramatically increases metabolic stability and brain penetration. Approved in Russia since 2009 as a nasal spray for generalized anxiety disorder (GAD) and adjustment disorders, it is one of the few peptides with proven clinical anxiolytic efficacy comparable to benzodiazepines — but without sedation, cognitive impairment, or dependence. This research-grade lyophilized powder is synthesized under strict quality controls and provided with full analytical documentation, making it the gold-standard for anxiolytic, nootropic, and neuroimmune research.

Key Scientific 

  • High-purity Selank (≥ 99% by HPLC/MS, acetate salt form)
  • Verified heptapeptide sequence: Thr-Lys-Pro-Arg-Pro-Gly-Pro (TKPRPGP)
  • Lyophilized formulation for maximum long-term stability
  • Full Certificate of Analysis (COA) with HPLC, MS, and amino acid analysis
  • Manufactured in GMP-aligned, ISO-compliant facilities
  • Ideal for anxiolytic, BDNF/enkephalin modulation, and intranasal delivery studies

Research-Referenced Attributes (Based on scientific literature; not intended as therapeutic claims.)

  • Rapid anxiolytic effect (within 1–3 min intranasally) via allosteric modulation of GABA-A receptors and enkephalin preservation
  • Increases BDNF expression in hippocampus — enhances learning, memory, and neuroplasticity
  • Normalizes serotonin metabolism and reduces stress-induced immune suppression
  • Clinically proven in Russia: 70–80% response rate in GAD with no sedation or withdrawal (n>500 patients)
  • Improves cognitive function in stress/anxiety models without habituation
  • High nasal bioavailability (>90%) and excellent safety profile — no benzodiazepine-like side effects

Why Researchers Choose Nationwide Peptides Selank

  • Exact Russian clinical-sequence match used in approved nasal spray
  • Highest documented anxiolytic potency and BDNF induction among research suppliers
  • Transparent analytical data (HPLC >99%, MS confirmation)
  • Trusted by psychiatry, neurology, and cognitive science laboratories
  • Competitive research pricing with bulk options

Storage & Handling

  • Store lyophilized powder at –4 °F (long-term) or 39.2 °F (short-term)
  • Store in a tightly sealed container and protect from light, moisture, air exposure, and elevated temperatures.
  • Reconstitute only with sterile saline for nasal spray (typical concentration 0.15–0.3% solution)
  • Reconstituted solutions stable at 39.2 °F for up to 4 weeks; avoid repeated freeze-thaw cycles
  • Use appropriate PPE and aseptic technique

Peptide Research

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