Where to buy GHRP-6 (growth hormone-releasing peptide 6) in the UK: the sellers with a verifiable COA
The newest verifiable GHRP-6 certificate on any UK seller's website is on Thoroughbredlabs (thoroughbredlabs.co.uk), analysed 18 Aug 2026 (task #222877 on Janoshik's site); 3 verified sellers hold one covering GHRP-6, 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 GHRP-6 is · Regulators · Every report
Who holds the newest GHRP-6 report (3 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 GHRP-6 report | Age of that report | Purity on it | |
|---|---|---|---|---|
| Thoroughbredlabs | 18 Aug 2026 | 1 month, 25 days | 98.880% | verify |
| Kensingtonlabs | 14 Nov 2025 | 10 months, 29 days | 99.376% | verify |
| Xlpeptides | 22 Aug 2025 | 13 months, 21 days | 99.333% | verify |
Every GHRP-6 purity report we have read (3), one row per report
The 3 verifiable GHRP-6 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 | |
|---|---|---|---|---|---|---|
| Thoroughbredlabs | #222877 | Thoroughbred Labs | [email protected] | 18 Aug 2026 | GHRP-6 · 4.34 mg · 98.880% | TBLGH010 | verify |
| Kensingtonlabs | #88274 | Kensingtonlabs.co.uk | 14 Nov 2025 | GHRP-6 · 9.07 mg · 99.376% | G6A-580QW | verify |
| Xlpeptides | #76136 | XL Peptides | 22 Aug 2025 | GHRP-6 · 5.00 mg · 99.333% | 007001 | 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 GHRP-6 is, and what it is sold as
GHRP-6 is the 1984 laboratory hexapeptide that founded the growth hormone secretagogue class. It was used in academic studies and as a diagnostic test for growth hormone deficiency, was never developed into a medicine by any company, and is prohibited by name on the WADA list.
| Development status | Studied in academic trials, never developed as a medicine. Human studies in the 1990s as a physiological probe and diagnostic test; never submitted for approval anywhere. |
|---|---|
| Originator | Cyril Bowers, Frank Momany and colleagues, Tulane University, 1984. Rights: Original patents long expired; no developer. Cuba's CIGB holds patents on a GHRP-6 and EGF combination. |
| Registered clinical trials | 0 on ClinicalTrials.gov |
The 1984 laboratory peptide that founded a drug class. Cyril Bowers and Frank Momany at Tulane described GHRP-6 in 1984 as the first synthetic peptide that released growth hormone in animals and then in people, years before its receptor, the ghrelin receptor, was known. PubMed indexes 703 papers, 359 in rodents, and 47 clinical-trial reports, mostly 1990s physiology and diagnostic studies: a Lancet paper in 2000 tested GHRH plus GHRP-6 as a diagnostic test for growth hormone deficiency in adults.
Never developed into a medicine. No company took GHRP-6 through approval; the field moved on to non-peptide secretagogues such as MK-677 and to later peptides such as ipamorelin. ClinicalTrials.gov lists no registered study of GHRP-6 alone. Cuba's Center for Genetic Engineering and Biotechnology studies it combined with epidermal growth factor for stroke, a separate combination product. The 2026 WADA Prohibited List names GHRP-6 as banned at all times.
What a certificate can tell you. The two purity reports we read recovered 4.34 mg (98.880%) and 5.00 mg (99.333%) on 5 mg labels.
The published record in numbers, and the sources
| Papers on PubMed | 703 |
|---|---|
| Indexed as rat or mouse studies | 359 |
| Indexed as clinical trials | 47 |
| Published since 2020 | 90 |
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.
- On the in vitro and in vivo activity of a new synthetic hexapeptide that acts on the pituitary to specifically release growth hormone. (Endocrinology, 1984, PMID 6714155)
- GH-releasing hormone and GH-releasing peptide-6 for diagnostic testing in GH-deficient adults. (Lancet, 2000, PMID 11030292)
- Growth hormone-releasing peptide-6 stimulates sleep, growth hormone, ACTH and cortisol release in normal man. (Neuroendocrinology, 1995, PMID 7617137)
- Phase III Open-Label, Randomized Clinical Trial of Epidermal Growth Factor and Growth Hormone Releasing Hexapeptide in Acute Ischemic Stroke. (J Clin Neurosci, 2026, PMID 42462342)
- Synthetic Growth Hormone-Releasing Peptides (GHRPs): A Historical Appraisal of the Evidences Supporting Their Cytoprotective Effects. (Clin Med Insights Cardiol, 2017, PMID 28469491)
- Berlanga-Acosta et al., 2017, historical appraisal of synthetic GHRPs (open access)
- WADA, 2026 Prohibited List (S2: peptide hormones, growth factors, related substances and mimetics)
What regulators say about GHRP-6
In the UK. Not a licensed medicine in the UK. Sold as a research chemical. Prohibited in sport.
We hold no statement from the FDA, MHRA or EMA specifically about GHRP-6 on file. Its development and licence sources are listed under the record above.
What the 3 GHRP-6 certificates show
We have read 3 Janoshik reports covering GHRP-6, published by 3 UK sellers. Each was opened on Janoshik's own website. All 3 name the seller itself as the client. 1 of the 3 is dated within the last six months and 1 is more than a year old. The newest is dated 18 Aug 2026 and the oldest 22 Aug 2025.
All 3 reports give a purity figure for GHRP-6. The figures run from 98.880% to 99.376%, and 2 of the 3 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: Thoroughbredlabs: task #222877, sample received 18 Aug 2026, 4.34 mg recovered at 98.880%, client Thoroughbred Labs; Kensingtonlabs: task #88274, analysed 14 Nov 2025, 9.07 mg recovered at 99.376%, client Kensingtonlabs.co.uk; Xlpeptides: task #76136, sample received 22 Aug 2025, 5.00 mg recovered at 99.333%, client XL Peptides.
A certificate is a batch document. The lines that matter are the compound (it must say GHRP-6, 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.
GHRP-6 in the UK at a glance
| Active UK sellers listing GHRP-6 | 5 |
|---|---|
| Of which publish a verifiable own-name certificate | 3 |
| Of which name no laboratory at all | 2 |
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 GHRP-6?
As of 13 October 2026, 3: Thoroughbredlabs, Kensingtonlabs, Xlpeptides. Each has a report on Janoshik's own website that names the seller as the client and lists GHRP-6. That is a statement about paperwork, not a recommendation; The Peptide Watch does not recommend anywhere to buy GHRP-6.
How recent is the newest GHRP-6 certificate from a UK seller?
The newest we have read is Janoshik task #222877, sample received 18 Aug 2026. It is published by Thoroughbredlabs 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 GHRP-6 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 GHRP-6; 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 GHRP-6 a licensed medicine in the UK?
Not a licensed medicine in the UK. Sold as a research chemical. Prohibited in sport. Human studies in the 1990s as a physiological probe and diagnostic test; never submitted for approval anywhere. The Peptide Watch does not give legal or medical advice.
Why does The Peptide Watch not say where to buy GHRP-6?
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 GHRP-6. 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 GHRP-6
Not a licensed medicine in the UK. Sold as a research chemical. Prohibited in sport. The Peptide Watch reads the certificates UK sellers publish and does not recommend anywhere to buy GHRP-6. Sellers on this page are listed by the date of their newest GHRP-6 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 GHRP-6 and links to no shop; this is research-use-only information, not medical or dosing advice.
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