Selank 10mg 10mg
Lot PX1SLNK10-0021
ILS Laboratories
Independent laboratory
HPLC purity
99.42%
High purity confirmed


Made in the USA
Ships from the USA
Peptides
Research monograph on Selank — a synthetic heptapeptide analog of tuftsin studied in anxiolytic and neuropeptide research models.
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For research use only. Not for human or animal consumption.
Molecular weight
751.88 g/mol
Molecular formula
C₃₃H₅₇N₁₁O₉
CAS number
129954-34-3
Chain length
7 amino acids
Amino-acid sequence
Thr-Lys-Pro-Arg-Pro-Gly-Pro
Classification: Research peptide
Batch verification
Independent testing with lot-specific analytical documentation.
Lot PX1SLNK10-0021
ILS Laboratories
Independent laboratory
HPLC purity
99.42%
High purity confirmed

Full GHS 16-section Safety Data Sheet for Selank, prepared per OSHA HazCom 2012 (29 CFR 1910.1200). Includes substance identity, handling & storage, PPE, stability, transport and regulatory information.
CAS No.
129954-34-3
Formula
C₃₃H₅₇N₁₁O₉
Mol. Weight
751.88 g/mol
Classification
Not hazardous (GHS)
Handling:
Important:
Selank is a lab-manufactured heptapeptide with the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro, modeled after the naturally occurring immunomodulatory fragment tuftsin. Initially manufactured at the Russian Academy of Sciences' Institute of Molecular Genetics, Selank has undergone substantial clinical and preclinical testing to determine its impact on neuroinflammation, cognitive performance, neurotransmitter levels, and anxious behaviors.
Prepared in a 5mg lyophilized format, this product is intended for in vivo and in vitro laboratory use, such as receptor studies, cell culture assays, analytical validation, and animal modeling. PX1 Research does not supply this product for veterinary or human consumption outside of a controlled research environment.
Scientists have utilized Selank in systematic laboratory environments to explore the following biological pathways:
In contrast to traditional benzodiazepines, Selank research models do not show evidence of amnesia, impaired motor coordination, or muscular relaxation. Experiments using open field tests and elevated plus-mazes have demonstrated dose-responsive decreases in anxiety markers, hinting at a unique modulation of the GABAergic framework via a non-classical route.
In rodent trials involving stress-related cognitive decline or scopolamine-induced amnesia, research suggests improvements in memory retention and new learning. This may be linked to Selank’s ability to affect brain-derived neurotrophic factor (BDNF) levels and promote neurogenesis in the hippocampus during stressful periods.
Due to its similarity to tuftsin, Selank displays immunotropic characteristics. Research indicates the peptide may lower pro-inflammatory markers like TNF-α, IL-6, and IL-1β while boosting the anti-inflammatory cytokine IL-10 within CNS tissues. This makes it a subject of interest for pain research, brain injury, and chronic stress models.
Tissue analysis and microdialysis studies indicate that Selank can modify extracellular concentrations of dopamine (DA), serotonin (5-HT), and norepinephrine (NE) within the hippocampus and prefrontal cortex. These shifts are specific to brain regions and dosage, providing a foundation for mechanistic research.
Because of its structural homology to tuftsin, Selank has been studied for its capacity to influence interferon-gamma (IFN-γ) and various antiviral pathways in immune cell cultures. These exploratory applications are extensively detailed in peer-reviewed immunological journals.
PX1 Research subjects every lot of Selank 5mg to strict quality benchmarks:
A specialized Certificate of Analysis (CoA) accompanies every purchase.
FOR RESEARCH PURPOSES ONLY. NOT FOR HUMAN OR VETERINARY USE.
By completing this purchase, you verify you are 18 years or older and that Selank 5mg will be used only for legal research efforts.
Extended bibliographies are available on request.
Add to cart for research use only. Clicking add to cart confirms that you have reviewed and agree to the terms and conditions stated above.
Purity (HPLC)
≥99%
Application
For Research Use only
Form
Lyophilized Powder
Storage
-20°C Long Term
Testing
Third Party Tested
Manufacture
USA
99%+ HPLC Purity
Independently verified by accredited US laboratory
Endotoxin-Screened
LAL tested, LPS-free, endotoxin report available
GMP-Certified Manufacturing
USA facility, ISO 9001:2015
Lyophilized for Stability
Shipped cold-packed and sealed for stability
Investigated in preclinical neuropeptide models for GABAergic, serotonergic and immune-signaling effects.
For research use only — not for human or animal consumption.
Research monograph
Selank is a synthetic heptapeptide consisting of the immunomodulatory tetrapeptide tuftsin (Thr-Lys-Pro-Arg) extended with the tripeptide Pro-Gly-Pro, which markedly increases stability against enzymatic degradation.
PX1 Research supplies lyophilized Selank as a reference compound for neuropeptide research, where it is studied alongside Semax as part of the regulatory-peptide class developed from endogenous fragments.
In rodent models Selank has been reported to modulate GABAergic and serotonergic signaling and to influence expression of brain-derived neurotrophic factor. It has also been described as altering the balance of enkephalin-degrading enzyme activity, which prolongs endogenous enkephalin signaling.
Its tuftsin heritage also gives it documented effects on immune-cell readouts in culture, so experiments frequently pair neurological and immunological endpoints.
Selank ships as a lyophilized powder in a sealed, tamper-evident vial. Store the unopened vial between −20°C and −80°C, protected from light, until the day of use. In this state the peptide is stable through the labeled expiration date printed on the lot documentation.
Every PX1 Research lot of Selank is manufactured in the United States and released against a documented specification of ≥99% purity by reversed-phase HPLC, with identity confirmed on the same lot by high-resolution LC-MS against the theoretical mass of the sequence.
Selank supplied by PX1 Research is intended strictly for in-vitro laboratory and research applications. It is not a drug, food, cosmetic, or medical device, and it is not for human or veterinary use, diagnosis, treatment, or consumption.
Researchers are responsible for handling the compound in accordance with their institution's safety procedures and all applicable local regulations. Safety data sheets and current lot documentation are available on this site.
All products are sold strictly for laboratory and research use only. Not for human or veterinary use, diagnosis, treatment or consumption. Statements have not been evaluated by the FDA.
High Quality — 99% Purity Guaranteed
We are continuously conducting HPLC testing on all of our raw powders as well as our finished products to ensure the quality of what we ship. You can have the product you bought from us independently tested at any HPLC-licensed testing facility — and if the results come back negative, we will refund the following:
HPLC Test Fee
$100
Plus a full refund
Total order amount + shipping
Selank 10mg
$65.00