Compare UK prices. 40+ products · 22 retailers scored
PeptideClear UK

Retailer comparison

UK research peptide retailers

OM

Oliver Mackman · Editorial director · Best Business Loans Ltd (16833937)

Last updated 2026-06-11

Editorial with affiliate links. We earn from purchases via outbound retailer / clinic links. How we are funded.

Six UK and UK-shipping research peptide retailers are compared here: my-peptides, Pure Peptides UK, Direct Sarms, Aquila, Pinnacle and Nooku. All operate under "research use only, not for human or animal consumption" framing and sit outside the MHRA medicines regulatory tier. PeptideClear scores each on the CoA Trust Index (per-batch certificate of analysis publishing, third-party lab partner, QR-verifiable batch lookup, dedicated CoA URL, and stance on third-party testing). We are editorial; pricing through our links matches direct.

How we assessed this
  • · CoA per batch (yes/no)
  • · CoA gating (open / email / image / login / none)
  • · Named lab partner
  • · QR-verifiable batch lookup
  • · Companies House status
  • · Headline benchmark price

Read our full methodology.

Retailer Purity CoA Delivery Payment Notes
my-peptides
my-peptides.co.uk		 99%+ HPLC Provided with order UK next-day Card + Apple/Google Pay + bank transfer UK warehouse. Strong UK-side delivery and customer support. Established research-grade range.
Pure Peptides UK
purepeptides.co.uk		 99%+ HPLC On request UK next-day Card + bank transfer Long-established UK supplier. Range overlaps with my-peptides plus some specialist peptides.
Direct Sarms
direct-sarms.com		 HPLC verified On request UK plus international Card + crypto SARMs alongside research peptides. Crypto payment option for EU customers.
Aquila Peptides
aquilapeptides.com		 HPLC verified On request UK + EU Card + crypto Smaller UK-EU operator. Niche peptides.
Pinnacle Peptides
pinnaclepeptides.uk		 HPLC On request UK Card UK-focused.
Nooku
nooku.io		 HPLC Provided UK + EU Card + crypto Newer entrant. Strong design.

Editorial summary, last reviewed June 2026. v0.2 will publish individual retailer profile pages with deeper purity-test methodology, customer-service responsiveness scores, and delivery-time data.

What HPLC actually tells you

  • · HPLC (high-performance liquid chromatography) measures purity by separating components and reading the proportion of the named peptide vs other compounds.
  • · "99%+ HPLC purity" means the named peptide is at least 99% of the total peptide content of the sample.
  • · It does NOT prove biological activity. A 99% pure dead peptide is still 99% pure.
  • · It does NOT prove sterility. Sterility is a separate test.
  • · It does NOT prove the labelled dose is correct. Dose is a separate analytical test.
  • · Mass spectrometry (MS) is a sister test that identifies the molecule by mass; CoAs that include both HPLC and MS are stronger than HPLC alone.

Where to buy peptides in the UK

Where you buy depends on which kind of peptide you mean. Research peptides come from the specialist research-supply retailers compared above, under research-use-only framing and outside the MHRA medicines tier. Cosmetic peptides and collagen come from ordinary retailers and pharmacies. Prescription peptide medicines such as the GLP-1 drugs come only through a UK clinic or pharmacy with a prescriber. If you are not sure which category you are looking at, start with the peptide therapy explainer. PeptideClear is editorial; we do not sell, dispense or prescribe.

Where can you buy peptides in the UK?
Research peptides are sold in the UK by specialist research-supply retailers under "research use only, not for human or animal consumption" framing. The six UK and UK-shipping retailers compared on this page are my-peptides, Pure Peptides UK, Direct Sarms, Aquila, Pinnacle and Nooku. They sit outside the MHRA medicines tier. Cosmetic peptides and collagen, by contrast, come from ordinary retailers and pharmacies, and prescription peptide medicines such as the GLP-1 drugs come only through a UK clinic or pharmacy with a prescriber. PeptideClear is editorial and does not sell, dispense or prescribe anything.
Can you legally buy peptides in the UK?
Research peptides can be bought in the UK when they are sold and purchased for research use only rather than for human consumption; that framing is what keeps them outside the medicines regime. They are not licensed for human use, and no UK retailer should make human-use claims about them. Cosmetic peptide skincare and collagen supplements are straightforwardly legal to buy. Prescription peptide medicines are legal only on a prescription from a UK-licensed prescriber.
What should you check before buying peptides in the UK?
Look for a per-batch Certificate of Analysis (CoA), ideally with both HPLC and mass spectrometry, a named third-party lab, and a UK entity you can verify at Companies House. We score each retailer on exactly those signals in the CoA Trust Index rather than on marketing claims. HPLC purity tells you the proportion of the named peptide; it does not prove sterility, biological activity or that the labelled dose is correct.
Is it cheaper to buy peptides direct or through a comparison site?
The same. Pricing through our links matches buying direct from the retailer; we are editorial and affiliate-funded, so the price you pay is not marked up. The value of the comparison is the verification data (CoA handling, lab partner, batch lookup), not a discount.

Top compounds stocked by UK retailers

The five most consistently stocked compounds across the six UK retailers in this comparison. Click through to the encyclopaedia entry for literature summaries, regulatory status, and manufacturer history.

BPC-157

Most widely stocked. Animal data only. No human RCTs.

TB-500

Thymosin beta-4 fragment. Preclinical literature only.

Ipamorelin

GHRP. Phase II discontinued. No UK authorisation.

Sermorelin

GHRH analogue. Geref withdrawn US 2008. No UK licence.

GHK-Cu

Copper-binding tripeptide. In-vitro and preclinical literature.

How each UK retailer handles Certificates of Analysis is scored in the CoA Trust Index. The same verification data is available as a read-only Data API and MCP server for developers and AI agents. Factual vendor and verification data only, not medical advice.

Popular on PeptideClear

Research peptides

BPC-157 (UK)

Collagen

Best UK collagen brands 2026

GLP-1

UK GLP-1 clinics compared

Methodology

CoA Trust Index

Shop

BPC-157 UK prices
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Reviewed by Oliver Mackman, editorial director · last reviewed 2026-06-11T12:00:00.000Z
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