Name: Selank
Brand: Lilipeptide
SKU: LILI-selank
Price: 52.00 USD
Availability: InStock

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

This is Lilipeptide‘s listing, dispatched from China. It is listed at $52.00. Checkout goes into escrow first; the funds move to Lilipeptide once delivery is confirmed.

This listing: Lilipeptide Selank

Brand: Lilipeptide
Also sold by: Vital Edge Science Selank $45.00 · Peptide Express 10mg $46.00 · Purus Peptides 10mg $39.00 · Lab77 Peptides 10mg $44.00 · Uther Peptide 10mg $60.00 · TFC Peptides 10mg $55.00

Lab testing

There is no public lab report for this listing yet. We can ask the brand for the batch COA before you order. Many buyers also split an independent HPLC test with others who bought the same batch.

Request the batch COA · How group testing works

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

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 no third-party report on file yet. The lab reports directory and the Selank page show which brands do publish testing.

Listing details

Compound: Selank
Synonyms: Tuftsin analogue
Class: Synthetic heptapeptide (tuftsin derivative)
Format: Lyophilized (freeze-dried) powder
Sold by: Lilipeptide
Ships from: China
Lab report: Not yet published

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.

Buyer questions

What is N-Acetyl Selank, and is it the same compound?

N-acetyl Selank carries an acetyl group on its N-terminus, a modification some vendors use with the aim of further slowing degradation. It is a distinct molecule with a different mass and a much thinner research record than the parent peptide. Listings and analytical reports should name the form explicitly, and the two should not be treated as interchangeable.

How does Selank relate to Semax?

Both peptides emerged from Russian research programs and share a Pro-Gly-Pro stabilizing tail, but their parent sequences differ. Semax is built on a fragment of adrenocorticotropic hormone, while Selank is built on tuftsin. They are studied in overlapping neuroscience areas yet remain separate compounds with separate literatures.

What if the parcel never arrives?

Open a claim from your order page. The payment is still in escrow at that point, so a claim decided in your favour is refunded to your Escrow Wallet.

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.