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NovaPepBuy Selank Peptide Australia: Selank 10mg Research Vial and Nasal Spray
$59AUD, GST included
In stock in Australia, batch certificate ready
- Certificate of analysis published for every batch
- Third-party HPLC purity and MS identity testing
- Dispatched same day before 3pm cut-off, tracked Australia-wide
- Research use only, sold to adults aged 18 and over
Buy Selank peptide online in Australia as a 10 mg research vial or a 10 mL nasal spray, tested on every lot. Selank peptide is the heptapeptide Thr-Lys-Pro-Arg-Pro-Gly-Pro, a synthetic version of tuftsin, the fragment of immunoglobulin G, lengthened with a Pro-Gly-Pro tail so peptidases break it down more slowly. It was created at the Institute of Molecular Genetics in Moscow and is used in rodent research on GABA-related gene expression, enkephalin metabolism and cytokine signalling. You can verify its identity before buying, C33H57N11O9, 751.9 g/mol and CAS 129954-34-3. It is available in Australia as a 10 mg lyophilised vial or a 10 mL nasal spray, both sent from stock held here. Each vial and spray lot is confirmed by mass spectrometry with purity measured by HPLC, and its certificate is viewable ahead of checkout. Work out the diluent volume for the vial with the peptide calculator, and put Semax in the same order if you are planning a paired study. Since the vial is shipped dry with no diluent, add bacteriostatic water. The spray, by contrast, comes already dissolved at 1 mg/mL. Store the unopened vial frozen at -20 °C. Selank is supplied as a research reagent to buyers 18 years or older.
For laboratory research use only. Not for human or veterinary use. Not TGA approved. See the NovaPep research use policy.
What Is Selank Peptide?
Selank is a synthetic peptide of seven amino acids derived from a naturally occurring immune fragment, and it is researched for the way it alters signalling in the GABA system, the main inhibitory network of the brain. In short, labs use it to investigate the territory where immune messengers meet calming neurotransmission. Buy Selank online in Australia as a 10 mg research vial or a 10 mL nasal spray, with the lot certificate published before you order.
Where It Came From, the Tuftsin Fragment
It all begins with tuftsin, a four-residue segment of the antibody molecule. Victor Najjar and Kenji Nishioka at Tufts University, which gave the fragment its name, showed in 1970 that this small piece of the immunoglobulin G heavy chain, once released by enzymes, spurs neutrophils and macrophages to engulf particles more vigorously. As a research tool, though, it does not last. Peptidases in blood and tissue break it down rapidly, and that shortcoming is what led to the stabilised analogue offered here.
The Institute of Molecular Genetics, a Russian Academy of Sciences laboratory in Moscow, designed Selank together with the Zakusov Institute of Pharmacology. They began with tuftsin, Thr-Lys-Pro-Arg, a short immune-signalling fragment of the immunoglobulin G heavy chain. Because tuftsin is cleared rapidly, the team attached Pro-Gly-Pro to the C-terminus, a peptidase-resistant motif, creating a seven-residue chain that survives longer in biological media.
How Selank Is Thought to Work
With two basic residues, lysine and arginine, and three prolines, Selank carries a positive charge at neutral pH and dissolves readily in aqueous diluents. The prolines also rigidify the chain at several positions, helping explain why it withstands enzymatic degradation better than tuftsin does.
Another body of work involves enkephalins, the short opioid peptides made by the body. Earlier studies from Russia found that Selank slows the serum enzymes that degrade enkephalins, which would extend their signalling. Add research on interleukin 6 and other cytokines, and Selank ends up with a profile bridging immunology and neuropharmacology, which is why groups from both disciplines take an interest.
Selank Research: What Studies Have Looked At
What Research Models Show About Selank
Gene expression provides the strongest evidence. Volkova and colleagues, writing in Frontiers in Pharmacology in 2016, dosed rats intranasally at 300 µg/kg with either Selank or GABA and then used real-time PCR to measure 84 genes linked to neurotransmission in the frontal cortex. After one hour, 45 genes showed significant changes, and after three hours the figure was 22. At the one-hour mark the responses to Selank and to GABA were positively correlated, and the authors suggested allosteric modulation of GABA-A receptors, meaning an adjustment to how the receptor responds rather than direct activation, as one possible explanation. To run this kind of in vitro work, buy Selank online in Australia from lots tested by HPLC and mass spectrometry.
The Volkova results carry a practical message about timing. Between the one-hour and three-hour samples, the number of changed genes fell by half. A study that collects tissue only once, late in the window, may miss most of the effect and report a null finding for a peptide that actually worked. When designing Selank expression experiments, include two or more early sampling points and keep the gap between preparing the solution and dosing the model the same each time, since a rapid effect leaves little margin for inconsistent timing.
That twin research profile is what draws labs to Selank. Work in rats and mice has looked at GABAergic gene expression, blocking of the enzymes that degrade enkephalins, cytokines including interleukin 6, and anxiety-like behaviour in standard rodent assays. It allows a lab to examine how a peptide descended from the immune system engages neurotransmitter pathways. Selank is a research reagent, not a medicine, and sits in our nootropic peptides range.
Selank as a Registered Medicine Abroad
In Russia the peptide is sold in pharmacies as an anxiolytic, and pharmacies in Ukraine have carried it as well, so it is one of the few compounds in our nootropic research range that holds a genuine clinical registration somewhere. A large share of the human data, including a 2008 comparison against medazepam in generalised anxiety disorder and neurasthenia, comes from Russian clinical teams and was published in Russian-language journals.
Selank Specifications and Formats
| Product | Selank |
|---|---|
| Sizes | 10 mg vial, 10 mL nasal spray containing 10 mg |
| Structure or sequence | Thr-Lys-Pro-Arg-Pro-Gly-Pro, tuftsin (Thr-Lys-Pro-Arg) extended by Pro-Gly-Pro |
| Chain length | 7 amino acids |
| Formula | C33H57N11O9 |
| Molar mass | 751.9 g/mol |
| CAS | 129954-34-3 |
| Format | Vial contains freeze-dried powder in sealed glass. Spray contains a 1 mg/mL solution in a 10 mL pump bottle |
| Analysis | Identity by mass spectrometry and purity by HPLC on every powder and spray lot, each with a separate certificate |
| In the box | Either one 10 mg vial shipped dry (diluent sold separately) or one 10 mL spray bottle containing 10 mg in solution |
| Storage | Unopened vial at -20 °C away from light. Spray and mixed solution at 2 to 8 °C |
| Stock | In stock |
| Intended use | Laboratory in vitro research only |
Selank comes in two formats. The vial holds a 10 mg cake of freeze-dried Selank beneath a teal flip-off cap, while the nasal spray is a 10 mL bottle fitted with a white pump actuator and silver collar, containing 10 mg already in solution. The molecule is the same seven-residue tuftsin analogue in each.
The two formats suit different studies. Lyophilised powder lets you set your own concentration, while the ready spray matches protocols modelled on the intranasal literature. Each contains 10 mg, each is stocked in Australia, and every lot comes with a certificate of its own.
The 10 mg vial is the right choice when cell work, receptor assays or a dilution series need a concentration you decide yourself. The 10 mL nasal spray holds the same 10 mg, dissolved in advance at 1 mg/mL behind a pump actuator. It costs a little more because you pay for the prepared solution and bottle, not extra peptide.
Checking Selank on the Certificate
Keep the certificate open when you review a lot. Confirm the measured mass matches 751.9 g/mol, that the HPLC trace has one dominant peak, and that the purity figure relates to the lot on your label. A shortened tuftsin fragment would come in several hundred daltons lower, so the mass reading is the quickest identity check. All certificates are kept in the COA library.
Handling and Storage of Selank
To prepare the vial, bring it to room temperature, run bacteriostatic water gently down the glass and swirl softly. Adding 1 mL to the 10 mg vial makes a 10 mg/mL stock ready for further dilution, 2 mL makes 5 mg/mL, and the peptide calculator covers any other volume. The spray is ready to use as supplied. When you buy Selank online in Australia, orders paid by 3pm on a business day are dispatched the same afternoon.
Store the unopened vial frozen at -20 °C away from light. Both reconstituted Selank and the spray bottle should be refrigerated at 2 to 8 °C, and dividing a mixed vial into aliquots protects the stock from repeated warming.
Selank Compared With Semax
Both peptides are seven residues long and end in the same Pro-Gly-Pro tail, yet their leading sequences come from different sources. Selank is built on tuftsin, making it the choice for questions about GABA-related gene expression, enkephalin metabolism or cytokines. Semax is built on the ACTH 4 to 7 fragment, contains a methionine and weighs 813.9 g/mol, and labs usually choose it for BDNF and cerebral ischaemia models.
Running both allows a single study to distinguish what the shared tail does from what the head sequence does. Each is offered as a 10 mg vial or a 10 mL spray, and DSIP rounds out the trio for designs focused on sleep.
Other Names for Selank
In published papers Selank is written as TKPRPGP, its one-letter code, or as Thr-Lys-Pro-Arg-Pro-Gly-Pro. Some authors describe it as a tuftsin analogue or a heptapeptide derivative of tuftsin, and Russian sources occasionally use Pro-Gly-Pro tuftsin. Related terms that often appear alongside it are GABA-A, enkephalinase and IL-6. Whichever name you order under, you receive the same 751.9 g/mol peptide, CAS 129954-34-3.
Is Selank Legal in Australia?
Under Australian rules, that overseas registration has no weight. Is Selank legal in Australia? As of October 2026 it does not appear in the Poisons Standard and so carries no schedule, which we verified by checking the October 2026 instrument. An approval abroad does not translate into one here either. A medicine must be entered on the Australian Register of Therapeutic Goods before it can be supplied in Australia for a therapeutic purpose. The TGA has also flagged unapproved peptide products for enforcement. In practice, Selank in Australia comes through laboratory suppliers rather than dispensaries.
Buy Selank Peptide Online in Australia
NovaPep keeps both the vial and the Selank nasal spray in local inventory as research reagents for laboratory use only. We sell only to adults 18 and over, and neither format is intended for human or veterinary use. Teams that want all three intranasal-format peptides in a single carton can weigh up the three-bottle spray research kit against ordering each spray separately.
Buy all the vials or bottles for a repeated series at once and keep one certificate on file, because a study spanning several weeks is easier to defend on a single batch. If your project uses the DSIP, Selank and Semax sprays together, the Spray Research Kit costs less than buying the three sprays separately. Selank is available only to adults aged 18 and over.
Selank is not something you can pick up in a shop. NovaPep operates online only and delivers to every state and territory from Australian stock. If payment lands before 3pm on a business day, the parcel goes out that afternoon, and transit times are listed on the delivery information page, which applies equally to research peptides in Hobart and to any mainland address.
Selank at a Glance
Tuftsin Analogue With Staying Power
Selank is a heptapeptide made from tuftsin with a Pro-Gly-Pro tail added to slow its degradation.
Order Vial or Spray
Choose a 10 mg lyophilised vial, which requires bacteriostatic water, or a 10 mL spray containing the same 10 mg already in solution.
GABA, Enkephalin and Cytokine Research
Used in rodent studies of GABA-related gene expression, enkephalin breakdown and interleukin signalling, strictly for laboratory research.
How It Compares With Semax
Equal length and an identical tail, but a different parent. Semax comes from ACTH and suits BDNF studies, whereas Selank comes from tuftsin.
Powder Frozen, Solution Chilled
Keep unopened vials at -20 °C. Store the spray and any reconstituted vial at 2 to 8 °C, using aliquots to reduce warming.
Every Lot Certified
Each powder and spray lot is checked by mass spectrometry and HPLC, and all certificates are published.
Selank FAQ
What is Selank and how does it work?
Selank is a seven residue analogue of tuftsin, an immune fragment of immunoglobulin G, with a Pro-Gly-Pro tail that resists peptidases. Rodent studies link it to changes in GABA-related gene expression and slower enkephalin breakdown, and one proposed explanation is allosteric modulation of GABA-A receptors.
Is there anywhere to buy Selank peptide near me?
Yes, online from anywhere in Australia. Select the 10 mg vial or the 10 mL nasal spray, and if payment comes through before 3pm on a business day the order goes out the same day. NovaPep has no shop or collection desk, and every order is packed from the same local inventory and shipped by tracked post.
Is a certificate of analysis provided with Selank?
Yes. Before sale, every powder lot and every spray lot is tested for identity by mass spectrometry and for purity by HPLC, and the certificates are posted in the COA library. The lot number printed on your vial or bottle shows which report matches the material you received.
Is Selank or Semax the better one to order?
Choose Selank for studies on GABA-related gene expression, enkephalins and cytokines, and Semax for BDNF or cerebral ischaemia models. Each is a heptapeptide ending in Pro-Gly-Pro, so buying both lets your lab compare a head derived from tuftsin with one derived from ACTH under the same conditions.
How does the Selank vial differ from the nasal spray?
Each holds 10 mg of the identical Selank sequence. The vial contains lyophilised powder that you can reconstitute to whatever concentration you need, whereas the spray contains 10 mg already dissolved at 1 mg/mL behind a pump actuator. Order the vial for flexibility and the spray to skip preparation in intranasal-route designs.
How is Selank used in laboratory research?
As a synthetic tuftsin analogue, Selank helps labs study how a peptide of immune origin interacts with GABAergic, enkephalin and cytokine systems in rodent and cell models. It is sold as a research reagent for in vitro laboratory work only and is not intended for human or veterinary use.
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