◇ The Peptide Watch, independent vendor audit

Is Kensingtonlabs legit? An independent review

kensingtonlabs.co.uk · audited 13 October 2026

On the verified list

Kensingtonlabs is independently tested: its certificate is genuinely its own and verifiable, one of only 41 of 524 UK vendors that pass.

Certificate: Janoshik, in the seller's own name · 19 reports read · newest analysed 25 May 2026 · see the reports
Official website: kensingtonlabs.co.uk
Buyer reports: Coming soon, visible from 1 November 2026 · tell us about your order

Checked daily against the seller's site, the laboratory's site and the public record. If this seller publishes new evidence, tell us and it is re-checked. Method · data · correction

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New As of 13 October 2026 you can leave feedback on your order. Reports are being collected now and will be shown on this page from 1 November 2026, so every seller has the same time to gather them. Written notes appear only after we have read them.

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19 reports we opened on Janoshik's site

Each row was opened by a real page load on verify.janoshik.com and transcribed. The client column is the name the laboratory printed. Newest first. Audit findings, not recommendations.

Task	Sample	Test	Client on the report	Received	Result
#153897	Semax - 5mg	purity	Kensington Labs	19 May 2026	Semax · 5.03 mg · 99.204%	verify
#153889	Selank - 5mg	purity	Kensington Labs	19 May 2026	Selank · 4.82 mg · 99.546%	verify
#121958	HCG 5000IU	purity	Kensington Labs	29 Apr 2026	HCG · 4947 IU	verify
#121946	BPC 157 5mg	purity	Kensington Labs	29 Apr 2026	BPC-157 · 4.22 mg · 99.487%	verify
#121938	MOTS-c 10mg	purity	Kensington Labs	29 Apr 2026	MOTS-c · 10.73 mg · 99.244%	verify
#121934	Ipamorelin 5mg	purity	Kensington Labs	29 Apr 2026	Ipamorelin · 4.97 mg · 99.668%	verify
#121930	CJC 1295 (no Dac) 5mg	purity	Kensington Labs	29 Apr 2026	CJC-1295 (mod GRF 1-29) · 5.15 mg · 99.625%	verify
#121926	GHK-Cu 50mg	purity	Kensington Labs	29 Apr 2026	GHK-Cu · GHK 43.36 mg, copper 1.71 mg · 99.200%	verify
#88274	GHRP-6 Acetate - 5mg	purity	Kensingtonlabs.co.uk	12 Nov 2025	GHRP-6 · 9.07 mg · 99.376%	verify
#88273	GHRP-2 Acetate - 10mg	purity	Kensingtonlabs.co.uk	12 Nov 2025	GHRP-2 · 10.32 mg · 99.752%	verify
#85945	PT-141 - 10mg	purity	Kensingtonlabs.co.uk	31 Oct 2025	PT-141 · 10.70 mg · 99.783%	verify
#85944	IGF-1LR3 - 1mg	purity	Kensingtonlabs.co.uk	31 Oct 2025	IGF-1 LR3 · 1.29 mg · 99.083%	verify
#85941	Epitalon - 10mg	purity	Kensingtonlabs.co.uk	31 Oct 2025	Epithalon · 10.24 mg · 99.031%	verify
#82451	Kisspeptin - 5mg	purity	Kensingtonlabs.co.uk	6 Oct 2025	Kisspeptin · 5.38 mg · 99.575%	verify
#81980	DSIP - 5mg	purity	Kensingtonlabs.co.uk	6 Oct 2025	DSIP · 5.41 mg · 99.470%	verify
#81975	Hexarelin - 5mg	purity	Kensingtonlabs.co.uk	6 Oct 2025	Hexarelin · 5.92 mg · 99.427%	verify
#78293	KPV 5mg	purity	Anonymous	10 Sep 2025	KPV · 2.81 mg · 99.574%	verify
#70797	Nad+ 100mg	purity	Kensington labs	9 Jul 2025	NAD+ · 115.51 mg	verify
#70795	Retatrutide 10mg	purity	Kensington labs	9 Jul 2025	Retatrutide · 10.76 mg · 99.076%	verify

How we read the certificate

Its certificate is its own. Kensington Labs publishes its own Janoshik certificates naming Kensington Labs as both client and manufacturer. The newest we verified is task #121930 (CJC-1295 no DAC 5mg, analysed 5 May 2026) at 99.625% purity, alongside #121926 (GHK-Cu 50mg) from the same order; the site carries 30 or more Janoshik reports going back to 2025.

Verify this certificate on Janoshik’s own site →

Opens the report on janoshik.com. Confirm the Client field names Kensingtonlabs and the purity matches. This is exactly the check we ran.

What this certificate actually is: Its own Janoshik certificate, it names the seller as the client and can be verified on Janoshik's website., client field: Kensington labs

Google Ads

Note: this seller also runs Google ads for research peptides, a category Google's own policies prohibit, visible in Google's Ads Transparency Centre (UK). Worth knowing, but it doesn't bear on the question that puts it on the independently-tested list: its certificates are its own and genuine.

Kensingtonlabs reviews: what others report

Third-party signals we found, reviews, independent tests and platform actions, each attributed to its source and labelled by how well it is corroborated. This is not our own verification; items marked "single / unverified report" are unconfirmed and should be treated with caution.

single / unverified report

Several reviewers reference Kensington Labs supplying Janoshik COAs and note the lab results 'are always good to see'. This is customers citing the vendor's published COAs rather than a buyer independently sending product to Janoshik, so it is low confidence as a purity signal.

“Appear genuine with their COA from Janoshik... loads of janoshik lab test results, always good to see.”

Source: Trustpilot reviews (kensingtonlabs.co.uk) as surfaced via search snippets

Questions people ask about Kensingtonlabs

Is Kensingtonlabs legit?

On The Peptide Watch's independent audit, Kensingtonlabs (kensingtonlabs.co.uk) publishes its own verifiable Janoshik certificate of analysis that names Kensingtonlabs itself as the client, so its testing can be checked on Janoshik's own website. That is the strongest evidence standard we track. It confirms the credibility of the seller's evidence, not any individual vial you receive.

Does Kensingtonlabs publish a real Certificate of Analysis?

Yes. Its most recent own-name Janoshik certificate is dated May 2026 and can be verified on Janoshik's website by its unique code, so the purity result cannot be faked or edited.

How do I check Kensingtonlabs's certificate myself?

Find the certificate on kensingtonlabs.co.uk and read four things: an independent laboratory is named; the client field names Kensingtonlabs, not a supplier; the compound line names the peptide you are buying, not only a batch code; and the report opens on the laboratory's own website from its task number and key (verify.janoshik.com for Janoshik). Then compare the batch number on the report with the one on your vial. The free COA Checker on this site runs the first three checks on a photo of the certificate.

Show buyers you are independently verified

Kensingtonlabs is one of only 41 UK vendors whose testing The Peptide Watch could independently verify. If that is you, display this badge: it links back to this audit. No fee and no catch, verified vendors are welcome to use it. It keeps itself up to date: it shows as verified only while this listing is verified.

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