Where to buy research peptides in Europe, and how to check what arrives: profiles of 19 peptides, practical buying guides and a new research article every day. Order links point to one supplier, King Peptides: HPLC purity of 98% or higher (most products 99%+), a certificate with every lot, dispatched from the Netherlands.
Mechanism, evidence, the doses published studies used, safety findings and molecular data, with a straight answer on what is and is not proven.
Investigational once-weekly peptide that switches on GIP, GLP-1 and glucagon receptors at the same time. In a 48-week phase 2 trial the top dose lowered body weight by 24.2% on average; phase 3 is running.
Once-weekly peptide that activates both the GIP and GLP-1 receptors. SURMOUNT-1 reported a mean 20.9% weight reduction at 72 weeks on 15 mg; in the EU it is authorised as Mounjaro.
Long-acting GLP-1 receptor agonist, authorised in the EU for type 2 diabetes and weight management. In STEP 1, 2.4 mg a week gave a mean 14.9% weight loss over 68 weeks, against 2.4% on placebo.
Fifteen-amino-acid fragment modelled on a protein in human gastric juice. Rodent studies report faster healing of tendon, muscle and gut injuries; no controlled human trials have been published.
Trade name for synthetic thymosin beta-4 products. The natural 43-amino-acid peptide holds actin monomers and steers cell migration; it has been studied in wound, heart and eye repair.
Modified fragment of growth-hormone-releasing hormone. With the DAC linker it binds albumin and keeps working for about a week; without it (Mod GRF 1-29) it lasts minutes and mimics a natural GHRH pulse.
We are a reference site, not a shop. We explain what the research shows, and we show you how to check what arrives in the post.
Every profile separates cell, animal and human data, lists the doses that published studies used, and says plainly where the evidence stops.
See how an HPLC trace, a mass spectrometry result and a lot number fit together, so you can judge any supplier — the one we link to included.
Order links go to King Peptides: HPLC purity of 98%+, a certificate for every lot, dispatched from the Netherlands and usually 3–5 business days to other EU countries.
Each peptide is filed under the pathway it acts on, so a comparison within a group compares like with like.
King Peptides dispatches from the Netherlands in neutral packaging with tracking. Inside the EU a parcel never meets customs; outside it, national import rules apply.
| Destination | Typical delivery | Customs |
|---|---|---|
| The Netherlands | 1–2 business days | None |
| Other EU member states | 3–5 business days | None inside the EU |
| United Kingdom, Switzerland, Norway and other non-EU countries | Varies by destination | Import rules and duties may apply |
Delivery times are the shop’s own estimates. Before ordering, check the rules on research chemicals in your country; the buying guide for Europe explains what to look at.
Long reads on the practical questions: ordering within Europe, reading a certificate, storage and reconstitution, and how the main peptide classes compare.
What to check before you order: certificates, EU delivery times, customs outside the EU, medicines law and the rules for athletes.
Read the guideAmino acid chains, receptors and half-lives explained, plus the difference between an authorised medicine and a research compound.
Read the guideHPLC chromatograms, mass spectrometry, lot numbers and the red flags that give away a generic or doctored certificate.
Read the guideTemperatures for powder and solution, bacteriostatic water, handling technique, shelf life and what a vial goes through in transit.
Read the guideOne, two or three receptors: mechanisms, half-lives, headline trial results and regulatory status of the incretin peptides side by side.
Read the guideIpamorelin, GHRP-2, GHRP-6 and hexarelin measured against each other, and where GHRH analogues such as CJC-1295 and tesamorelin fit in.
Read the guideShort, sourced pieces on peptide research, testing and the European market. Read the archive →
Semax and Selank are ACTH-derived Russian neuropeptides with distinct mechanisms: Semax raises BDNF directly, while Selank potentiates GABAergic tone. Understanding their structural and functional divergence is essential for laboratory research design.
Read articleEpithalon is a four-amino-acid synthetic peptide derived from the crude multi-peptide pineal extract epithalamin. This article examines why structural isolation may alter telomerase activation efficacy and reproducibility in cell-based assays.
Read articleGHK-Cu and LL-37 represent distinct approaches to wound repair. GHK-Cu drives collagen deposition; LL-37 accelerates epithelialisation and antimicrobial defence. Together they model complementary healing pathways.
Read articleA reference site about research peptides, written for readers across Europe. Each profile explains how a peptide works, what the evidence shows and where it runs out, and which product it matches. We do not sell anything ourselves: order links go to King Peptides (kingpeptides.nl), with which we have a commercial relationship. The details are on About & disclosure.
King Peptides dispatches from the Netherlands and delivers to addresses across Europe. Inside the EU there is no customs clearance; the shop quotes 1–2 business days for the Netherlands and 3–5 business days for other EU countries. Parcels to countries outside the EU, such as the United Kingdom, Switzerland or Norway, can be subject to import rules and duties. The buying guide for Europe covers the details.
Research peptides are sold for laboratory and scientific research only. They are not authorised medicines and are not intended for human or veterinary use. Rules on buying, holding and importing them differ between European countries, and several of these molecules also exist as prescription medicines. Check what applies to you and your institution before ordering. Athletes should know that many of these peptides are on the WADA Prohibited List.
Ask for a certificate of analysis that belongs to your lot: an HPLC chromatogram for purity and a mass spectrometry result that matches the expected molecular weight. A purity figure without a chromatogram or a lot number proves very little. Our guide to certificates shows what to look for.
Freeze-dried powder keeps best dark, dry and at −20 °C. Once dissolved, a vial belongs in the fridge at 2–8 °C and has a much shorter life, which differs from peptide to peptide. The storage and reconstitution guide explains the details.
Dispatched from the Netherlands · 99%+ HPLC purity · lot-specific CoA · 3–5 business days across the EU.