There are a lot of peptide shops, and most of their websites look the same. The differences show up after you pay: whether the vial matches the report, whether it arrives, and whether anyone answers when something goes wrong. Here is the list we would use ourselves. Hold us to it too.
1. A COA for every batch, published before you buy
Not one report for the product line. One report per batch, from a named outside lab, with the batch number that is printed on the vial. If it is not on the site, ask for it. If they will not send it, that is your answer. Ours are on the Lab Tests (COA) page.
2. Both purity and identity on that report
HPLC purity says how clean the sample is. Mass spectrometry says what it is. You need both. Our COA guide shows where to find each one.
3. Batch numbers on the label
A label with no batch number cannot be matched to any report. It is the easiest thing to check and the most often missing.
4. Honest wording
Research peptides are sold for laboratory use. A supplier that writes like a pharmacy, with dosing instructions and health promises, is either careless about the rules or hoping you are. Neither is a good sign for how they handle the product itself.
5. Ships from inside Europe, with tracking
Parcels from outside the EU sit in customs, collect import charges, and sometimes do not arrive at all. A European warehouse means a few days in transit and no surprises at the door. We ship tracked across Europe, and shipping is free on orders over 200 €.
6. Clear prices and bundle maths
The price per vial should be visible, and any multi-pack discount should be easy to work out. If you need a spreadsheet to understand the checkout, something is being hidden in it.
7. A real way to reach a human
Email that gets answered, and ideally chat. Send a question before your first order and see what comes back. We answer at contact and through the chat bubble on every page.
8. A damage and loss policy in writing
Vials break and couriers lose things. Find out what happens before it happens.
9. Sensible payment options
Card payments through a named processor, or bank transfer with clear instructions. Crypto-only with no alternative tends to mean no one wants to be found later.
10. Storage and handling you can see
How is stock stored, how is it packed, and does the supplier publish guidance on storage and reconstitution? A shop that teaches you how to look after the product is a shop that cares whether it works. Start with our storage guide.
If a supplier passes all ten, you can order with some confidence. If they fail the first three, do not bother with the rest.
All products on this site are sold for laboratory research only. Nothing here is medical advice.
