Selank
Proper Handling
- Specifications: Lyophilized powder. Purity (>98%) meets or exceeds U.S. Pharmacopeia (USP) regulations.
- Storage: In lyophilized form, the peptide is stable up to 2 years. Protect from light. Refrigerate and use within 45 days after opening or reconstituting.
Selank is a synthetic peptide derived from the naturally occurring immunomodulatory tetrapeptide Tuftsin. Originally developed in Russia as an anxiolytic candidate, Selank has since become a subject of interest in neuroscience for its potential effects on cognitive function, emotional regulation, and stress-response pathways. Its structure allows it to interact with neural and immune systems, making it a unique molecule within neuropeptide research.
Studies suggest that Selank may influence GABAergic activity, a major inhibitory neurotransmitter system associated with calmness and stress reduction. Research has also examined its impact on neurochemical balance, including modulation of serotonin, dopamine, and brain-derived neurotrophic factor (BDNF), all of which play roles in mood, learning, and memory. Investigators continue to evaluate Selank’s ability to affect cortisol regulation and overall stress resilience.
Scientific exploration has highlighted Selank’s potential roles in supporting attention, cognitive clarity, short-term memory, and neuroplasticity. It has also been evaluated for its possible influence on sleep quality, emotional processing, and general anxiolytic-like effects in preclinical studies. Because of its multi-pathway activity, Selank remains a notable peptide within research fields focused on cognition, stress biology, and neurobehavioral health.
Disclaimer: This peptide is for research and educational purposes only.
This product is for research and educational purposes only. It is not intended for diagnostic or therapeutic use without the guidance of a qualified healthcare professional. Please refer to our terms and conditions prior to purchase.
This product comes in the form of lyophilized powder and must be reconstituted with bacteriostatic water prior to use.
Safety Information: Keep this product out of the reach of children. This material has limited research available about it and may result in adverse effects if improperly handled or consumed. This product is not a dietary supplement, but a pure substance, sold as a raw material. We attest exclusively to the quality, purity and description of the materials we provide. This product is for use and handling only by persons with the knowledge and equipment to safely handle this material. You agree to indemnify us for any adverse effects that may arise from improper handling and/or consumption of this product.
The articles and information on products that may be found on this website are provided exclusively for the purposes of providing information and education. These items are not pharmaceuticals or medications, and the Food and Drug Administration has not given permission for the treatment or prevention of any disease, medical condition, or ailment using them.
Frequently Asked Questions
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Commonly known and understood peptides in the medical community are insulin, oxytocin, collagen. These are all peptides.
As a matter of fact, the human body naturally produces more than 7,000 known peptide types. With this many peptides, they are used in a wide variety of the body's systems and are essential to the way we function and age.
Peptides are very tiny proteins made up of short chains of amino acids. They signal the cells in your body to act in certain ways. As a result, peptides are responsible for how you function, feel, look and live overall. Since different peptides affect different cells and functions, they can be highly tailored and targeted to treat a full spectrum of health, wellness, fitness, metabolism, aging and cognitive conditions.
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Peptides should be stored in a refrigerator (2°C to 8°C) after reconstitution. Lyophilized (powdered) peptides should also be kept in a cool, dry place until reconstitution or in a freezer for long term storage.
To preserve the integrity of peptides, proper storage is essential. While some peptides are more susceptible to degradation than others, knowing and implementing the best practices for peptide storage can greatly lengthen their stability.
Once peptides have been received, make sure they are kept cold and away from light. If the peptides will be used immediately, or in the next several days, weeks or months, short-term refrigeration under 4C (39F) is acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months room temperature is adequate.
For longer term storage it is preferable to store peptides in a freezer at -80C (-112F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide’s stability.
Avoid repeated freeze-thaw cycles. This can increase the peptide’s susceptibility to degradation. Also, frost-free freezers should be avoided to store peptides, as temperatures can fluctuate widely during defrosting cycles.
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Lyophilization is a freeze-drying process that removes moisture from a compound to improve stability during storage and transport. Many peptides are supplied in lyophilized (powder) form for this reason.
Peptides in dry form are generally more stable than liquid formulations. This allows for longer shelf life prior to preparation and helps preserve integrity during shipping. -
A Certificate of Analysis (COA) is a quality document that summarizes analytical testing performed on a specific product batch. It helps confirm identity, purity, and consistency. Typically includes:
- Product name
- Peptide sequence or abbreviation
- Batch or Lot Number
- Manufacturing date
- Test or report date
Identity testing (MS) confirms that the compound analyzed matches the intended molecular structure.
Purity (HPLC) refers to how much of the sample is the intended compound versus related fragments or residuals.
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Sterility and endotoxin testing are quality and contamination-screening tools.
Sterility testing is performed to assess whether a sample contains viable microorganisms (such as bacteria or fungi) under specific test conditions. It is a growth-based test, meaning samples are incubated and observed over time.
Endotoxin testing screens for lipopolysaccharides (LPS) — components of the outer membrane of certain bacteria. Sterility and endotoxin testing may not be required or meaningful for every peptide due to:- Synthetic manufacturing processes that do not involve biological growth media
- Short peptide sequences that undergo cleavage, purification, and solvent exposure
- Lyophilization, which limits microbial viability
- Batch handling and packaging format
While sterility and endotoxin testing are not required for all peptides, Soma goes above and beyond standard industry practices by offering sterility and endotoxin reports on products and upon request. This additional testing reflects our commitment to transparency, quality oversight, and providing partners with robust batch-level documentation to support their internal review and compliance processes. - Synthetic manufacturing processes that do not involve biological growth media
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We're happy to help answer questions. Email us at care@somapeptides.com. Our support team is available M-F 9:00 AM - 4:00 PM Pacific.