For Research Purposes Only · Not For Human Consumption
High-purity peptides for UK research laboratories.
Every vial is ≥ 98% HPLC purity, independently tested, and shipped with a batch-matched Certificate of Analysis. Dispatched same-day from Manchester.
For Research Purposes Only · Not For Human Consumption
Independently Verified By
Every batch is checked by an external UK or EU laboratory before it leaves us. Full certificates are linked from each product page.
Janoshik Analytical
HPLC-UV / MS
Aspen Bioanalytics
HPLC-UV / MS
Chromate Analytics
HPLC-UV / MS
Retatrutide.
Supplied as lyophilised 10mg and 20mg vials. Each lot is independently verified by HPLC-UV and mass spectrometry, with the Certificate of Analysis linked directly on the product page. Stocked in Manchester for Royal Mail Tracked dispatch on orders placed before 6pm GMT.
≥98%
HPLC Purity
LX-2501
Current Batch
Same-day
UK Dispatch
Triple-agonist research peptide · For in-vitro research only.
Most-bought research peptides
Direct links to our most-requested research compounds. Every vial ships lyophilised with a batch-matched Certificate of Analysis.
- Summer Sale · 30% Off
Metabolic Research
Retatrutide · 10mgTriple-receptor GLP-1, GIP and glucagon agonist. Retatrutide — often shortened to 'Reta' — is the most advanced metabolic research peptide, supplied as lyophilised powder with batch-matched CoA.
≥98% HPLCIn Stock£59.99£85.70
- Summer Sale · 30% Off
Metabolic Research
Retatrutide · 20mgHigher-dose triple-receptor GLP-1, GIP and glucagon agonist for extended research. Retatrutide (Reta) as lyophilised powder with batch-matched CoA.
≥98% HPLCIn Stock£99.99£142.84
- Skin & Collagen
Skin Health / Anti-Ageing
GHK-Cu · 100mgCopper peptide tripeptide-1. Researched for collagen synthesis, wound repair and skin rejuvenation.
≥98% HPLCIn Stock£34.99
- Top Rated
Recovery / Healing
BPC-157 · 5mgBody Protection Compound-157. Widely researched for tissue repair, gut health and joint recovery.
≥98% HPLCIn Stock£15.99
- Popular Blend
Growth Hormone / Recovery
CJC-1295 + Ipamorelin · 5+5mgGold-standard GHRH + GHRP blend. Research-grade dual peptide for GH pulse stimulation.
≥98% HPLCIn Stock£36.99
Independently Verified
From synthesis to your bench.
Every lot is independently tested by Janoshik Analytical or Aspen Bioanalytics before dispatch. We do not rely on in-house testing alone.
Step 01
HPLC Purity
High-Performance Liquid Chromatography quantifies the active peptide content of every lot, reported to 0.1 percent. Anything beneath 98% is destroyed in-house — it never reaches a vial.
Step 02
Mass Spectrometry
Mass-spec confirms the molecular weight matches the declared sequence exactly. It is the test that catches misidentified, substituted or oxidised material before a single milligram is filled.
Step 03
External Verification
Both checks are then re-run by an independent laboratory — Janoshik Analytical or Aspen Bioanalytics. The signed certificate is linked from the product page.
What every order looks like.
Pharmaceutical-Grade Synthesis
Synthesised in audited facilities and supplied only after independent third-party QC. We never ship material we wouldn't run ourselves.
Manchester-Based, Same-Day Dispatch
Orders placed before 6pm GMT leave the same working day via Royal Mail Tracked 24. Most UK addresses receive their order next working day.
Temperature-Controlled Storage
Every vial is held at −20°C from goods-in through to dispatch, then shipped in insulated mailers to preserve structural integrity in transit.
Full Lot Traceability
Each product page links a batch-specific Certificate of Analysis. Look up any lot number — past or present — from the order email.
Free UK Shipping
Free Royal Mail Tracked 24 on all orders over £50. Orders under £50 ship for £3.99.
Lost or Damaged? Free Reshipment
If tracking shows your order lost in transit, or it arrives damaged, we send a free replacement — no forms, no argument. Just reply to your order confirmation email.
Categories
Browse by category.
UK Buyer's Guides
Sourcing peptides in the UK.
Plain-English guides to the compounds most sourced by British research groups — what each peptide is, what to demand from a supplier, and how to read a Certificate of Analysis properly.
FAQ
Here's what you should know.
Everything researchers most commonly ask before placing their first order. Can't find the answer? Email peptide@peptide-based.com.
Yes. Research peptides are supplied legally in the United Kingdom for in-vitro laboratory work. They are not licensed medicines under the MHRA and are not intended for human or veterinary use. All buyers must be 18 or older and ordering for a research context.
Every batch is verified by an independent UK laboratory — Janoshik Analytical or Aspen Bioanalytics — using HPLC-UV and mass spectrometry. The Certificate of Analysis is linked from each product page.
Anything below 98% HPLC purity is rejected and never leaves the laboratory. The exact purity figure for your lot is printed on the Certificate of Analysis you can download from the product page.
Qualified researchers, university groups, contract labs and independent investigators based in the UK. Placing an order confirms you are 18+ and that the material will be used solely for in-vitro research.
Orders placed before 6pm GMT on a working day are dispatched the same day with Royal Mail Tracked 24. Most UK addresses receive the parcel the next working day; the Highlands and Islands can take an additional 24 hours.
Vials are held at −20°C from goods-in until dispatch and shipped in unbranded, insulated mailers with a cold pack when ambient temperatures require it. This preserves potency in transit and keeps deliveries discreet.