Selank Peptide Australia: Buy Selank Online or as a Nasal Spray

Shop Selank Peptide in Two Formats With Lot Data and Chemical Identity

Name	Selank
Sizes and prices (AUD)	10 mg vial at $59, 10 mL nasal spray containing 10 mg at $69
Sequence or structure	Thr-Lys-Pro-Arg-Pro-Gly-Pro, tuftsin (Thr-Lys-Pro-Arg) extended by Pro-Gly-Pro
Length	7 amino acids
Molecular formula	C33H57N11O9
Molar mass	751.9 g/mol
CAS number	129954-34-3
Form	Vial holds lyophilised powder in sealed glass. Spray holds a 1 mg/mL solution in a 10 mL bottle with pump
Testing	Mass spectrometry confirms identity and HPLC measures purity for each powder and spray lot, with its own certificate
Contents	One 10 mg vial supplied dry (diluent sold separately), or one 10 mL spray bottle holding 10 mg in solution
Storage	Sealed vial at -20 °C, protected from light. Spray and reconstituted solution at 2 to 8 °C
Availability	In stock
Use	Laboratory in vitro research only

Order Selank in the format that fits your design, lyophilised powder when you want to choose the concentration or the ready spray when the protocol follows the intranasal literature. Both hold 10 mg, both are in stock in Australia, and each lot carries its own certificate.

What Is Selank Peptide?

Selank is a lab-designed seven-amino-acid peptide built from a natural immune fragment, studied for how it shifts signalling in the GABA system, the brain's main inhibitory network. Put simply, researchers use it to explore where immune messengers and calming neurotransmission overlap.

The parent molecule: tuftsin

The story starts with tuftsin, a four-residue piece of the antibody molecule. In 1970 Victor Najjar and Kenji Nishioka at Tufts University (hence the name) reported that this short stretch of the heavy chain of immunoglobulin G, once freed by enzymes, prompts neutrophils and macrophages to engulf particles more actively. Its problem as a research tool is lifespan: blood and tissue peptidases dismantle it quickly, and that weakness led to the stabilised analogue sold here.

How Selank works in research models

The best-documented line of evidence comes from gene expression. In a 2016 Frontiers in Pharmacology study, Volkova and colleagues gave rats Selank or GABA itself intranasally at 300 µg/kg and used real-time PCR to measure 84 neurotransmission genes in the frontal cortex. One hour later, 45 genes had changed significantly; at three hours, 22 had. The changes after Selank and after GABA correlated positively at the one-hour point, and the authors proposed allosteric modulation of GABA-A receptors (fine-tuning the receptor's response rather than switching it on directly) as one possible mechanism.

A second line concerns enkephalins, the body's short opioid peptides. Earlier Russian studies reported that Selank slows the enzymes that break enkephalins down in blood serum, which would prolong their signalling. Together with work on interleukin 6 and other cytokines, that gives Selank a profile that sits between immunology and neuropharmacology, and explains why it attracts groups from both fields.

The practical lesson from the Volkova data is about timing. The count of altered genes halved between the one-hour and three-hour samples. A study that samples tissue at a single late point can miss most of the response and record a negative result for a peptide that did act. If you are planning Selank expression work, build in at least two early time points, and keep the interval between preparing the solution and dosing the model consistent, because a fast-acting effect leaves little room for loose timing.

Buy Selank Online in Australia, the Tuftsin Analogue

Selank was designed in Moscow at a Russian Academy of Sciences laboratory, the Institute of Molecular Genetics, in partnership with the Zakusov Institute of Pharmacology. The starting point was tuftsin, Thr-Lys-Pro-Arg, a short fragment of the immunoglobulin G heavy chain with immune-signalling activity. Tuftsin clears quickly, so the designers added Pro-Gly-Pro at the C-terminus, a motif that resists peptidases, and produced a seven-residue chain that lasts longer in biological media.

Buy Selank peptide for that dual research profile. Studies in rats and mice have examined GABAergic gene expression, inhibition of the enzymes that break down enkephalins, cytokines such as interleukin 6, and anxiety-like behaviour in standard rodent tests. The question it lets a lab ask is how a peptide with immune ancestry interacts with neurotransmitter systems. It is a research reagent rather than a medicine and is listed in our nootropic peptides range.

Selank in Australia: A Russian Medicine Here Only as a Research Reagent

Two formats leave our shelves. The vial is a 10 mg cake of freeze-dried Selank under a teal flip-off cap, and the nasal spray is a 10 mL bottle with a white pump actuator and silver collar holding 10 mg already dissolved. Neither format changes the molecule, which is the same seven-residue tuftsin analogue in both. In Russia the peptide reached pharmacies as an anxiolytic medicine, and Ukrainian pharmacies have stocked it too, which makes it one of the few compounds in our nootropic research range with a real clinical registration somewhere in the world. Much of the published human data, including a 2008 comparison with medazepam in generalised anxiety disorder and neurasthenia, comes from Russian clinical groups and Russian-language journals.

That foreign registration counts for nothing in the Australian system. Is Selank legal in Australia? It is not named in the Poisons Standard as of October 2026, so it has no schedule; we confirmed this by searching the October 2026 instrument. Nor does an overseas approval create any Australian one: a medicine has to be entered on the Australian Register of Therapeutic Goods before it can be supplied here for a therapeutic purpose, and the TGA has singled out unapproved peptide products for enforcement attention. Anyone searching Selank Australia will therefore find it through laboratory suppliers, not dispensaries.

Buy Selank Australia stock from AminoBlend as a vial or as the Selank nasal spray, both held in local inventory as research reagents for laboratory use only. Sales are restricted to adults 18 and over, and neither format is for human or veterinary use. Research teams wanting all three intranasal-format peptides in one carton can compare the price of the three-bottle spray research kit against buying the sprays one by one.

Order Selank Peptide for Sale as a Vial or Spray From One Lot

Order the 10 mg vial at $59, which works out at $5.90 per milligram, when you need a concentration of your own choosing for cell work, receptor assays or a dilution series. The 10 mL nasal spray at $69 contains the same 10 mg, pre-dissolved at 1 mg/mL behind a pump actuator, or $6.90 per milligram. That extra $10 covers the prepared solution and the bottle rather than more peptide.

Shop every vial or bottle for a repeated series together and file a single certificate, since a study that runs over weeks is easier to defend on one batch. Projects using the DSIP, Selank and Semax sprays together can take the Spray Research Kit at $179. Selank is sold to adults aged 18 and over only.

Buy Selank With Structure, Purity and a Lot Certificate You Can Check

Selank carries two basic residues, lysine and arginine, plus three prolines, so it is positively charged at neutral pH and dissolves easily in aqueous diluents. The prolines stiffen the chain at several points, which is part of the reason it resists enzymatic breakdown better than tuftsin itself.

Order with the certificate open beside you. Check that the measured mass agrees with 751.9 g/mol, that the HPLC trace shows one dominant peak, and that the purity result belongs to the lot printed on your label. A truncated tuftsin fragment would read several hundred daltons lighter, so the mass line is the fastest identity check. Every certificate is filed in the COA library.

Order Selank Online for Delivery Near You and Store It Correctly

You will not find Selank on a shop shelf. AminoBlend sells online only and ships to every state and territory from stock held in Australia. Payment before 3pm on a business day means the parcel leaves that afternoon, and the delivery information page covers transit times, the same for research peptides in Hobart as for any mainland address.

To reconstitute the vial, let it reach room temperature, add bacteriostatic water slowly against the glass and swirl gently. One millilitre in the 10 mg vial gives a 10 mg/mL stock for further dilution, while 2 mL gives 5 mg/mL, and the peptide calculator handles any other volume. The spray needs no preparation at all.

Keep the sealed vial frozen at -20 °C in the dark. Reconstituted Selank and the spray bottle both belong in the fridge at 2 to 8 °C, and splitting a mixed vial into aliquots spares the stock from repeated warming.

Other Names for Selank

Selank appears in the literature as TKPRPGP, its one-letter sequence, and as Thr-Lys-Pro-Arg-Pro-Gly-Pro. Some papers call it a tuftsin analogue or a heptapeptide derivative of tuftsin, and Russian sources sometimes write it as Pro-Gly-Pro tuftsin. Receptor vocabulary that recurs around it includes GABA-A, enkephalinase and IL-6. Buy under any of these names and you receive the same 751.9 g/mol peptide with CAS 129954-34-3.

Order Selank or Semax, or Both for a Paired Study

The two peptides share a length of seven residues and the same Pro-Gly-Pro tail, but their heads come from different parents. Selank starts from tuftsin, so choose it when your question involves GABA-related gene expression, enkephalin metabolism or cytokines. Semax starts from the ACTH 4 to 7 fragment, carries a methionine and weighs 813.9 g/mol, and it is the usual pick for BDNF and cerebral ischaemia models.

Shop both and one study can separate the effects of the shared tail from those of the head sequence. Each comes as a 10 mg vial or a 10 mL spray, and DSIP completes the trio for sleep-related designs.