HPLC + MS verified, every batch
≥99% purity guarantee
Free UK shipping over £100
Trustpilot 4.5★ · 40+ reviews
Research-grade peptides · UK stock

Lab-verified peptides for serious research.

Every batch HPLC + mass-spec tested. ≥99% purity, dispatched from our UK facility within 24 hours. Used by independent labs, academic groups, and clinical-research teams across the United Kingdom.

99.4%
Avg. purity
23
Peptides in stock
24h
UK dispatch
40+
Trustpilot reviews
Batch PV-43BE4D-JUHD-B1

Retatrutide 30 mg

HPLC verified

99.69%

99.69%Purity
5,164 DaMass (MS)
UKBatched & tested
Shop by goal

Find the right compound, fast.

Browse our catalogue by research goal — each tile is curated by our research team and links to compound-specific guides.

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GLP-1 & Metabolic

Retatrutide, Tirzepatide, Semaglutide — triple, dual, and single agonists for metabolic research.

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Healing & Recovery

BPC-157, TB-500, BPC+TB blends — tissue repair and connective-tissue research.

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Skin & Cosmetic

GHK-Cu, KLOW80, GLOW70, Melanotan II — copper peptides and dermal research blends.

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Longevity & Cellular

NAD+, MOTS-c, Epithalon, SS-31 — mitochondrial and cellular-ageing compounds.

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Best sellers

Most ordered this quarter.

Top peptides chosen by UK research labs over the last 90 days. All shipped from UK stock.

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Top seller

Retatrutide 30mg

Retatrutide 30 mg
99.69% purity · GLP-1/GIP/Glucagon

£120.69

Add to cart

99.69% purity

Retatrutide 20mg

Retatrutide 20 mg
Triple agonist · 20mg vial

£99.69

Add to cart

Signature blend

KLOW80

KLOW80 Skincare Blend
GHK-Cu + KPV + TB-500 + BPC-157

£80.00

Add to cart

≥99% purity

CJC-1295 + Ipamorelin

CJC-1295 + Ipamorelin
5 mg + 5 mg blend

£44.99

Add to cart

≥99% purity

BPC-157

BPC-157 10 mg
Body Protection Compound

£32.00

Add to cart

≥99% purity

GHK-Cu

GHK-Cu 100 mg
Copper peptide · cosmetic research

£35.69

Add to cart

New

NAD+ 1000mg

NAD+ 1000 mg
Cellular & longevity research

£75.00

Add to cart

Lab essential

Bacteriostatic Water 10ml

Bacteriostatic Water 10 ml
For peptide reconstitution

£6.00

Add to cart

Verification & Testing

Every batch tested twice. Independently.

We send a sample from every lot to an independent UK lab for HPLC purity analysis and mass-spec identity confirmation. Certificates of Analysis are published per batch — anyone can verify online before purchasing.

  • HPLC purity ≥99% (most batches ≥99.3%)
  • Mass-spec identity confirmation on every lot
  • Per-batch certificates published publicly
  • Lyophilised under inert gas, stored at −20°C

Read the full verification process →

Certificate of AnalysisVerified
Batch PV-43BE4D-JUHD-DF · KLOW Blend
MethodHPLC + MS
Purity (HPLC)99.32%
Identity (MS)Confirmed
Endotoxin< 0.5 EU/mg
Tested byPeptideVerify Lab UK
Issued17 May 2026
Customer reviews

What UK researchers say.

★★★★★
4.5 / 5
40+ Trustpilot reviews
★★★★★

“Finding a trustworthy source for peptides is genuinely hard in the UK. Messaged Steve, friendly comms and expert advice. 100% recommend.”

Alex OttawayResearch lab
★★★★★

“Fast delivery, Steve is always happy to answer questions. Really good customer service and the package was packed safely. Will defo order again.”

Marzena AnnaRepeat customer
★★★★★

“Absolutely outstanding! Ordered at 4am Friday and the product was with me 9am the following day. Klarna option was a bonus.”

Megan RoseFirst-time buyer
Common questions

Before you order.

Are these peptides for human consumption?

No. Every product on ThePeptideCode is sold strictly for laboratory and research use only. They are not intended for human or veterinary use, diagnosis, or treatment.

How do you verify purity?

Every batch is independently HPLC tested for purity (≥99%) and confirmed by mass spectrometry for identity. Certificates of Analysis are published per batch on PeptideVerify and linked from each product page.

How fast is UK delivery?

Orders placed before 3pm Mon–Fri ship same day from our UK facility via Royal Mail Tracked 24. Free over £100, otherwise £4.95.

How should peptides be stored?

Lyophilised peptides are shipped under inert gas and remain stable at room temperature for short transit. Long-term: store at −20°C. After reconstitution, keep refrigerated at 2–8°C and use within the window listed on our dosage and storage guide.

What payment methods do you accept?

Visa, Mastercard, AmEx, PayPal, and Klarna (3 instalments, no interest). All payments are processed by our PCI-compliant provider — we never see your card details.

Need a custom batch or a bulk order?

Academic, contract-research, and clinical-research enquiries welcome. Direct line to our research team — usually replies the same day.

Contact research team →

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