Research-grade peptides · UK stock
Lab-Verified Research Peptides UK
Every batch HPLC + mass-spec tested. ≥99% purity, dispatched from our UK facility within 24 hours. Trusted by research customers across the United Kingdom.
- 99.4%
- Avg. purity
- 35+
- Peptides in stock (various MG)
- 24h
- UK dispatch
- 75+
- Trustpilot reviews
Best sellers
Most ordered this quarter.
Top peptides chosen by UK research labs. All shipped from UK stock with published Certificates of Analysis.

KLOW80 80mg | 99.32% Purity | Exclusive Peptide Blend | UK Research

GHK-Cu 100mg | 99.71% Purity | Copper Tripeptide
GHK-Cu 100mg — Gly-His-Lys copper-binding tripeptide. 99.71% purity (HPLC-verified). One of the most studied copper peptides in extracellular matrix, wound-healing, and collagen research. UK stock. Research use only.

SS-31 10mg (Elamipretide) | ≥99% Purity Research Grade UK
SS-31 10mg (Elamipretide) — a synthetic tetrapeptide that targets the inner mitochondrial membrane. ≥99% purity (HPLC-tested). The most studied mitochondria-targeting peptide for in-vitro cellular energy research. UK-stocked.

Bacteriostatic Water 10ml | Peptide Reconstitution
★★★★★
“What a fantastic company, I had a problem that I caused, and I got in contact with the company, who were amazing, not only did they help me work out what I probably done wrong, but they also offered to replace my peptide Will definitely use the peptide code again”
Darren Forsythe
Fist Time Customer
★★★★★
“Fantastic customer support! I had some issues with my promotional code, but Stephen helped me every single step of the way until everything was sorted. The service was excellent. I’ve already recommended the company to 2 friends, and they’re very satisfied too.”
Carol oliveira
First Time Customer
★★★★★
“Flawless experience. I've placed a few orders with Thepeptidecode now and each one has been flawless. Every order comes with the verified COA printed, I've double checked the compound myself and it passed with flying colours. The service is exceptional, really quick delivery, communication is perfect and all round brilliant company. I will 100% be using thepeptidecode for all my future research, seeing brilliant results already!”
Belal
Repeat customer
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 and linked from each product page.
How fast is UK delivery?+
Orders placed before 12 noon Mon–Fri ship same day from our UK facility via Royal Mail. Standard (Tracked 24hr, 1–2 working days) is £4.99 — free standard shipping over £100.
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.
What payment methods do you accept?+
Pay by Bank (instant bank payment) and direct bank transfer (BACS). All payments are processed by PCI-DSS-compliant providers — 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 →