Supplier profile

Performance Labs UK

Research peptide products, supplier information and the evidence behind the testing claims. Research-use products only.

94 Calder Street, Glasgow G72 0AZ · registered officeCoverage: 16 products tracked

16tracked products

50/100average product score

0verified evidence records

12peptides covered

About the supplier

Company details come from the supplier’s own site and public company records.

Trading name: Performance Labs UK
Legal company: PerformanceLabsUK Ltd
Company number: SC883220
Registered office: 94 Calder Street, Glasgow G72 0AZ
Website: performancelabsuk.com

Companies House record ↗

Testing & transparency

Companies House verified: Yes
UK address disclosed: Not found
Contact details: Yes
Shipping policy: Yes
Returns policy: Yes
Batch / testing process explained: Yes

A supplier saying its products are tested is not the same as a published laboratory report for the exact vial. Each product page shows what evidence was actually found.

How we score research peptides →

Supplier score profile

Averages of tracked products, not a separate supplier rating. Products with a pending score are excluded, never counted as zero.

Testing & analytical evidence23/10016 of 16 products

Value for money56/10016 of 16 products

Product identity82/10016 of 16 products

Label & listing transparency100/10016 of 16 products

Tracked products (16)

UK catalogue

Products from Performance Labs UK
Product	Quantity	Price / vial	Price / mg	Testing	Score
MOTS-c 40mgMOTS-c	40 mg / vial	£59.99per vial	£1.50per mg	Testing evidence Evidence status Testing claimed Manufacturer statement Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number. Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury. PerformanceLabsUK has every MOTS-c batch tested by a third-party laboratory. Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 24/25 Product identity 15/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	Buy Now
KLOW 80mgKLOW blend	80 mg / vial	£79.99per vial	£1.00per mg	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." / "A batch-specific Certificate of Analysis is available on request" / "Every batch supplied by PerformanceLabsUK is third party tested for identity, purity and heavy metals (As, Cd, Pb, Hg) by an independent analytical laboratory." / "Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury." Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 12/45 Value 15/25 Product identity 14/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	Buy Now
GHK-Cu 100mgGHK-Cu	100 mg / vial	£38.99per vial	£0.39per mg	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." "Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury." "PerformanceLabsUK has every GHK-Cu batch tested by a third-party laboratory. A batch-specific Certificate of Analysis is available on request and will be published in our COA Library." Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 12/45 Value 17/25 Product identity 10/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	Buy Now
KPV 10mgKPV	10 mg / vial	£34.99per vial	£3.50per mg	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." "A batch-specific Certificate of Analysis is available on request and will be published in our COA Library." "Every batch supplied by PerformanceLabsUK is third party tested for identity, purity and heavy metals (As, Cd, Pb, Hg) by an independent analytical laboratory." Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 12/45 Value 16/25 Product identity 11/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	Buy Now
BPC-157 + TB-500 20mgWolverine (BPC-157 + TB-500)	20 mg / vial	£59.99per vial	£3.00per mg	Testing evidence Evidence status Testing claimed Manufacturer statement Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number. Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury. Every batch supplied by PerformanceLabsUK is third party tested by Janoshik Analytical, and every vial ships with that batch-specific certificate of analysis. Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 18/25 Product identity 10/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	Buy Now
Tesamorelin 10mgTesamorelin	10 mg / vial	£54.99per vial	£5.50per mg	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." / "Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury." / "Every batch third party tested. Verify it yourself against the certificate, or your money back." Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 17/25 Product identity 11/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	Buy Now
Retatrutide 40mgRetatrutide	40 mg / vial	£229.99per vial	£5.75per mg	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." "Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury." "Every batch we supply is third party tested by Janoshik Analytical" Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 12/25 Product identity 15/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	Buy Now
Retatrutide 20mgRetatrutide	20 mg / vial	£139.99per vial	£7.00per mg	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." "Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury." "Every batch we supply is third party tested by Janoshik Analytical." Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 9/25 Product identity 15/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	Buy Now
NAD+ 1000mgNAD+	1000 mg / vial	£139.99per vial	£0.14per mg	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." "Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury." "Every batch supplied by PerformanceLabsUK is third party tested by Janoshik Analytical, and every vial ships with that batch-specific certificate of analysis." Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 12/25 Product identity 12/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	Buy Now
Retatrutide 10mgRetatrutide	10 mg / vial	£94.99per vial	£9.50per mg	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." "Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury." "A batch-specific Certificate of Analysis is available on request and will be published in our COA Library." "Every batch supplied by PerformanceLabsUK is third party tested by Janoshik Analytical, and every vial ships with that batch-specific certificate of analysis." Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 12/45 Value 5/25 Product identity 15/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	Buy Now
PT-141 10mgPT-141	10 mg / vial	£48.99per vial	£4.90per mg	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number."; "Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury."; "A batch-specific Certificate of Analysis is available on request and will be published in our COA Library."; product image says "Purity: 99.5%+ (HPLC)" Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 11/25 Product identity 10/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	Buy Now
CJC-1295 (No DAC) + Ipamorelin 10mgCJC-1295 + Ipamorelin blend	10 mg / vial	Out Of Stock	Out Of Stock	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." / "Every batch supplied by PerformanceLabsUK is third party tested for identity, purity and heavy metals (As, Cd, Pb, Hg) by an independent analytical laboratory." / "A batch-specific Certificate of Analysis is available on request and will be published in our COA Library." Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 17/25 Product identity 11/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	View Supplier
Retatrutide 30mgRetatrutide	30 mg / vial	Out Of Stock	Out Of Stock	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." "Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury." "Every batch supplied by PerformanceLabsUK is third party tested for identity, purity and heavy metals (As, Cd, Pb, Hg) by an independent analytical laboratory." Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 13/25 Product identity 15/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	View Supplier
Selank 10mgSelank	10 mg / vial	Out Of Stock	Out Of Stock	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." "Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury." Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 15/25 Product identity 11/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	View Supplier
Semax 10mgSemax	10 mg / vial	Out Of Stock	Out Of Stock	Testing evidence Evidence status Testing claimed Manufacturer statement "Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number." "Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury." Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 13/25 Product identity 11/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	View Supplier
GHK-Cu 50mgGHK-Cu	50 mg / vial	Out Of Stock	Out Of Stock	Testing evidence Evidence status Testing claimed Manufacturer statement Every vial ships with a batch-specific certificate of analysis from Janoshik, a third party laboratory, verifiable by task number. Batch-specific Certificate of Analysis. Identity by HPLC and mass spectrometry, purity, and a heavy metals panel covering arsenic, cadmium, lead and mercury. Laboratory Not recorded Certification body Not recorded Batch Not recorded Batch-specific report Not established in this record Report date Not recorded Evidence checked 2026-10-25	Why this score? Testing & analytical evidence 10/45 Value 12/25 Product identity 10/15 Supplier transparency 9/10 Label & listing transparency 5/5 Displayed points and weights are rounded; the total uses unrounded weights. Pending dimensions are excluded. Provisional scores may change after review.	View Supplier

Transparency summary

What the current records support, and where evidence is incomplete.

What we could verify

Trading company: PerformanceLabsUK Ltd (company number SC883220).
The company number resolves to an active company on Companies House.
Registered office: 94 Calder Street, Glasgow G72 0AZ.
16 research peptide products tracked across 12 peptides.
The supplier explains how batches are tested and traced.

What we could not verify

No tracked product currently has a verified independent laboratory report.

Not confirmed does not mean it does not exist. A supplier’s own statements are distinct from independently verified testing.

Sources & last reviewed

Last reviewed: 25 Oct 2026

Supplier details are taken from the supplier’s own site and Companies House; product testing evidence keeps its recorded status.