Where to buy Selank in the UK: the sellers with a verifiable COA
The newest verifiable Selank certificate on any UK seller's website is on Lab77Peptides (lab77peptides.uk), analysed 28 Sep 2026 (task #231378 on Janoshik's site); 12 verified sellers hold one covering Selank, listed newest first below.
A record of paperwork, not a recommendation: The Peptide Watch sells nothing, takes no money from sellers and links to none of them.
Who has the newest report · Why the date matters · What purity means · What Selank is · Regulators · Every report
Who holds the newest Selank report (12 verified UK sellers)
Newest report first. Every report was opened on Janoshik's own website and names the seller as the client. The date is the analysis date printed on the report. The verify link opens the laboratory, never the shop. Audit findings, not recommendations.
| Seller | Newest Selank report | Age of that report | Purity on it | |
|---|---|---|---|---|
| Lab77Peptides | 28 Sep 2026 | 15 days | 99.981% | verify |
| Mercia Research | 18 Sep 2026 | 25 days | 99.608% | verify |
| Peptology Labs | 4 Sep 2026 | 1 month, 9 days | 99.953% | verify |
| Peptide Central UK | 13 Aug 2026 | 2 months | 99.620% | verify |
| Pureline Biolabs | 22 Jul 2026 | 2 months, 21 days | 98.913% | verify |
| Kensingtonlabs | 25 May 2026 | 4 months, 18 days | 99.546% | verify |
| Biohackpeptides | 21 May 2026 | 4 months, 22 days | 99.646% | verify |
| Thoroughbredlabs | 15 May 2026 | 4 months, 28 days | 99.569% | verify |
| Peptifyuk | 11 May 2026 | 5 months, 2 days | 99.794% | verify |
| Xlpeptides | 11 Feb 2026 | 8 months, 2 days | 99.089% | verify |
| Imperialpeptides | 5 Feb 2026 | 8 months, 8 days | 99.725% | verify |
| Clinicore | 5 Feb 2026 | 8 months, 8 days | 99.801% | verify |
Every Selank purity report we have read (13), one row per report
The 13 verifiable Selank certificates we have read, newest first
Each row was opened on Janoshik's own site by a real page load and transcribed. The client column is the name the laboratory printed; a certificate counts as a seller's own only when that name is the seller. The report date is the analysis date printed on the report where we have read it, otherwise the date the laboratory received the sample. The verify link opens the laboratory, never the shop. Audit findings, not recommendations.
| Seller | Task | Client on the report | Report date | Result | Batch | |
|---|---|---|---|---|---|---|
| Lab77Peptides | #231378 | Lab77peptides.uk | 28 Sep 2026 | Selank · 12.54 mg · 99.981% | L77selank2612 | verify |
| Mercia Research | #231821 | Mercia Research Limited | 18 Sep 2026 | Selank · 3.59 mg/ml · 99.608% | MRL-26Q3-A09 | verify |
| Peptology Labs | #229670 | PEPTOLOGY LABS LTD | 4 Sep 2026 | Selank · 11.62 mg · 99.953% | SL7091 | verify |
| Peptide Central UK | #217541 | Peptide Central UK | 13 Aug 2026 | Selank · 12.07 mg · 99.620% | 100243 | verify |
| Pureline Biolabs | #209940 | Pureline Biolabs Ltd | 22 Jul 2026 | Selank · 10.43 mg · 98.913% | PLB-006 | verify |
| BioVanta Research | #153895 | Zenith Biolabs | 25 May 2026 | Selank · 4.82 mg · 99.546% | SLK-192LA | verify |
| Kensingtonlabs | #153889 | Kensington Labs | 25 May 2026 | Selank · 4.82 mg · 99.546% | SLK-192LA | verify |
| Biohackpeptides | #162931 | BiohackPeptides.co.uk | 21 May 2026 | Selank · 5.09 mg · 99.646% | BHP26ESK5 | verify |
| Thoroughbredlabs | #149080 | Thoroughbred Labs | [email protected] | 15 May 2026 | Selank · 11.38 mg · 99.569% | TBLSE140 | verify |
| Peptifyuk | #149068 | Peptify UK | 11 May 2026 | Selank · 11.42 mg · 99.794% | 2026/04 | verify |
| Xlpeptides | #107392 | XL Peptides | 11 Feb 2026 | Selank · 13.54 mg · 99.089% | 250SLK | verify |
| Clinicore | #105486 | clinicore | 5 Feb 2026 | Selank · 13.00 mg · 99.801% | sk10101 | verify |
| Imperialpeptides | #105934 | Imperial Peptides UK | www.imperialpeptides.co.uk | 5 Feb 2026 | Selank · 6.06 mg · 99.725% | SLK5-12/27 | verify |
Why the date on a certificate matters
What a purity figure means
The purity on a Janoshik report is the share of the main peak in an HPLC chromatogram. 99.5% means that 99.5% of what the detector saw was one substance and 0.5% was something else. It is not the amount in the vial: that is the separate quantity line, in milligrams. It does not by itself prove which substance the peak is: that is identity, confirmed by mass spectrometry. And it says nothing about sterility, endotoxins or heavy metals, which are separate tests.
A purity figure printed on a shop page with no report behind it is a claim, not a measurement. Between two reports, the difference that matters is rarely 99.2% against 99.8%; it is whether the report exists at all, names the seller as the client, covers this compound on its own, and is recent.
What Selank is, and what it is sold as
Selank is a synthetic peptide derived from the immunomodulatory peptide tuftsin, studied in anxiety and cognition research. It is one of the compounds we have seen genuinely tested by verified UK sellers under their own name.
| Development status | Licensed elsewhere, not in the UK, US or EU. Registered as a medicine in Russia; no approval or development programme in the UK, EU or US. |
|---|---|
| Originator | Institute of Molecular Genetics, Russian Academy of Sciences. Rights: Russian state research institute; registered medicine in Russia. |
| Registered clinical trials | 2 on ClinicalTrials.gov |
A Russian anxiolytic peptide with a Russian evidence base. Selank was developed at the Institute of Molecular Genetics of the Russian Academy of Sciences and is registered as a medicine in Russia for anxiety. PubMed indexes 68 papers, 49 of them rat or mouse studies, and 3 clinical-trial reports, all from Russian groups.
Outside Russia there is nothing. No trial by a Western developer, no registration with the MHRA, EMA or FDA, and only 2 registered studies on ClinicalTrials.gov, neither by a drug company.
For a UK buyer, the Russian product and a research-chemical vial are different things, and only a verifiable certificate says what the vial contains.
The published record in numbers, and the sources
| Papers on PubMed | 68 |
|---|---|
| Indexed as rat or mouse studies | 49 |
| Indexed as clinical trials | 3 |
| Published since 2020 | 7 |
Counts are from PubMed on 15 September 2026 using the queries recorded in our evidence file. A description of the published record, not medical advice and not an argument for or against use.
- [Optimization of the treatment of anxiety disorders with selank]. (Zh Nevrol Psikhiatr Im S S Korsakova, 2015, PMID 26356395)
- [A comparison of the anxiolytic effect and tolerability of selank and phenazepam in the treatment of anxiety disorders]. (Zh Nevrol Psikhiatr Im S S Korsakova, 2014, PMID 25176261)
- [Efficacy and possible mechanisms of action of a new peptide anxiolytic selank in the therapy of generalized anxiety disorders and neurasthenia]. (Zh Nevrol Psikhiatr Im S S Korsakova, 2008, PMID 18454096)
- Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions. (J Am Acad Orthop Surg Glob Res Rev, 2026, PMID 41490200)
What regulators say about Selank
In the UK. Not a licensed medicine in the UK. Sold as a research chemical.
We hold no statement from the FDA, MHRA or EMA specifically about Selank on file. Its development and licence sources are listed under the record above.
What the 13 Selank certificates show
We have read 13 Janoshik reports covering Selank, published by 13 UK sellers. Each was opened on Janoshik's own website. 12 of the 13 name the seller itself as the client; the rest name a supplier or a different shop. 10 of the 13 are dated within the last six months. The newest is dated 28 Sep 2026 and the oldest 5 Feb 2026.
All 13 reports give a purity figure for Selank. The figures run from 98.913% to 99.981%, and 12 of the 13 are at 99% or above. A purity figure describes the sample the laboratory received, not every vial from that batch.
Read directly from the newest reports: Lab77Peptides: task #231378, analysed 28 Sep 2026, 12.54 mg recovered at 99.981%, client Lab77peptides.uk; Mercia Research: task #231821, analysed 18 Sep 2026, 3.59 mg/ml at 99.608%, client Mercia Research Limited; Peptology Labs: task #229670, sample received 4 Sep 2026, 11.62 mg recovered at 99.953%, client PEPTOLOGY LABS LTD.
A certificate is a batch document. The lines that matter are the compound (it must say Selank, not only a batch code), the client (the shop, not its supplier) and the analysis date. A new batch is untested until a new report appears.
Selank in the UK at a glance
| Active UK sellers listing Selank | 29 |
|---|---|
| Of which publish a verifiable own-name certificate | 12 |
| Of which name no laboratory at all | 4 |
Counted from the vendor ledger at build time. The A-Z directory lists every seller and what each publishes instead.
Questions people ask
Which UK sellers publish a verifiable Janoshik certificate naming Selank?
As of 13 October 2026, 12: Lab77Peptides, Mercia Research, Peptology Labs, Peptide Central UK, Pureline Biolabs, Kensingtonlabs, Biohackpeptides, Thoroughbredlabs, Peptifyuk, Xlpeptides, Imperialpeptides, Clinicore. Each has a report on Janoshik's own website that names the seller as the client and lists Selank. That is a statement about paperwork, not a recommendation; The Peptide Watch does not recommend anywhere to buy Selank.
How recent is the newest Selank certificate from a UK seller?
The newest we have read is Janoshik task #231378, analysed 28 Sep 2026. It is published by Lab77Peptides and names it as the client. A certificate covers one batch, so an old one says little about stock on sale today.
How do I check that a certificate for Selank is genuine?
Four things: an independent laboratory is named; the client field names the seller you are buying from, not a supplier; the compound line says Selank; and the report's task number and key open the same report on the laboratory's own website (verify.janoshik.com). A branded PDF with no laboratory name and no verification code fails on the first check, however professional it looks. The free COA Checker on this site runs the checks for you.
Is Selank a licensed medicine in the UK?
Not a licensed medicine in the UK. Sold as a research chemical. Registered as a medicine in Russia; no approval or development programme in the UK, EU or US. The Peptide Watch does not give legal or medical advice.
Why does The Peptide Watch not say where to buy Selank?
Because the site records paperwork, not recommendations. A verifiable certificate proves that a sample of one batch was tested. It does not prove the vial you receive matches it, and it says nothing about whether anyone should use Selank. Listing which sellers publish a certificate you can check, and which publish nothing, is as far as the evidence goes.
The Peptide Watch's position on Selank
Not a licensed medicine in the UK. Sold as a research chemical. The Peptide Watch reads the certificates UK sellers publish and does not recommend anywhere to buy Selank. Sellers on this page are listed by the date of their newest Selank certificate and by nothing else. If you can verify a seller's testing, you can at least judge its evidence; if you cannot, you are taking the seller's word for what is in the vial. See how UK testing compares across every seller in the market statistics.
An honest note: a verifiable certificate proves a sample of a batch was tested, not that the specific vial you receive matches it, see what this can and can't tell you. The Peptide Watch sells no Selank and links to no shop; this is research-use-only information, not medical or dosing advice.
All peptides · Other compounds: BPC-157 · TB-500 · GHK-Cu · Ipamorelin · CJC-1295 · MOTS-c · Epithalon · Semax · Tesamorelin · Melanotan 2 · KPV · PT-141 · SS-31 · DSIP · NAD+ · Melanotan 1 · AOD-9604 · 5-Amino-1MQ · Glutathione · Kisspeptin · Thymosin Alpha-1 · GHRP-6 · HGH Fragment 176-191 · IGF-1 LR3 · FOXO4-DRI · Oxytocin · SLU-PP-332 · MK-677 · GLOW and KLOW blends · Sermorelin · GHRP-2 · Hexarelin · ARA-290 · AHK-Cu