Selank 11mg (10 Vials / Kit)

Selank at a glance

Selank is a synthetic seven-amino-acid peptide, Thr-Lys-Pro-Arg-Pro-Gly-Pro. Its first four residues reproduce tuftsin, a short immunoactive fragment of the immunoglobulin G heavy chain; the trailing Pro-Gly-Pro motif was appended to slow breakdown by peptidases. The compound came out of Russian academic research and is registered as a medicine in Russia, though it has no approval in the United States or the European Union. Research supplies arrive as a white lyophilized powder.

Price and availability

HK Peptide lists this kit of 10 vials at 11mg each (110 mg in total), shipped from Hong Kong, Hong Kong. At $80.00 for the kit, that works out to $0.727 per mg. 18 brands sell Selank on GLP1 Forum Escrow, with a typical price of $0.693–$3.80 per mg (median $0.90); this listing is inside that range. Checkout goes into escrow first; the funds move to HK Peptide once delivery is confirmed.

What it is studied for

Proposed mechanisms span the nervous and immune systems. In rodent work, Selank has been reported to influence GABAergic transmission, possibly by modulating how GABA-A receptors respond to their ligands rather than occupying the benzodiazepine site directly. Other papers describe changes in serotonin and dopamine metabolism, shifts in hippocampal brain-derived neurotrophic factor expression, and inhibition of enkephalin-degrading enzymes, which would prolong endogenous opioid peptide signaling. On the immune side, its tuftsin heritage links it to macrophage activity, and studies have measured altered interleukin-6 and other cytokine transcripts. None of these pathways has been established as the primary mode of action.

Research and regulatory status

Most Selank papers originate from a small network of Russian institutions, and many appear in Russian-language journals. The published work includes rodent anxiety and memory paradigms, gene-expression studies, and small clinical reports in patients with anxiety disorders associated with its domestic registration. Independent Western replication remains limited, and large double-blind trials of the kind the FDA or EMA would require have not been reported. Outside Russia, it is treated as an investigational research compound.

Checking the lab data

A useful certificate confirms the seven-residue sequence by mass spectrometry, with the observed mass matching the theoretical value for Thr-Lys-Pro-Arg-Pro-Gly-Pro, and reports HPLC purity from a dated, batch-numbered run. Because related analogues such as N-acetyl variants are also sold, the report should state plainly whether the peptide is unmodified. The vial should hold a compact white or off-white lyophilized cake with no visible moisture or discoloration.

This listing has an independent lab report attached; the testing panel above summarises what the tested sample contained against its label.

Listing details

Compound

Selank

Synonyms

Tuftsin analogue

Class

Synthetic heptapeptide (tuftsin derivative)

Format

Lyophilized (freeze-dried) powder

Vial strength

11mg

Vials per kit

10

Total content

110 mg

Price per mg

$0.727

Sold by

HK Peptide

Ships from

Hong Kong, Hong Kong

Lab report

Independent report attached

Storage and preparation

Freeze-dried peptide keeps best sealed, cold and dark. Once it has been dissolved, refrigerate it, avoid repeated warming and follow the stability limits in your study protocol.

Concentration arithmetic: one 11 mg vial dissolved in 2 mL gives 5.5 mg/mL, or 11 mg/mL in 1 mL. The Research Lab calculator in your dashboard handles any other volume.

Buyer questions

Supplied for laboratory research only. Not for human or veterinary use, and not a substitute for any prescription medicine. Nothing on this page is medical advice.