Supplier Transition Guide
A Peptide Sciences alternative for European researchers
Peptide Sciences stopped taking orders in March 2026. If your laboratory sourced research peptides there, you are now evaluating suppliers from scratch — and the differences between them matter more than their catalogues suggest. This page is the checklist we would use, followed by an honest account of how ChinaPeptideshop measures against it.
What to verify before you switch suppliers
Any supplier can claim quality. These four checks separate documentation from marketing.
Batch-level third-party COAs
A generic purity claim is not evidence. Ask whether the supplier publishes certificates of analysis from an independent laboratory, tied to the batch number printed on the vial — and whether you can verify each report on the testing lab's own portal instead of trusting a screenshot.
Where it ships from
For EU-based laboratories, an EU-internal supplier means no customs clearance: no held parcels, no import paperwork, no surprise fees, and shorter transit. Overseas shipping can work, but every border crossing is a failure point for time-sensitive research material.
Payment options that work in Europe
Check which payment rails the supplier actually supports from your country, and what happens when a payment fails. For European research purchases, SEPA transfers are the reliable baseline.
Documentation and support
Reconstitution data, storage guidance, and a support channel that answers within a business day. If pre-sales questions go unanswered, post-sales problems will too.
How ChinaPeptideshop measures up
Point by point against the same checklist — including the parts where we simply tell you how it is.
Batch COAs, including the unflattering ones
Selected lots are independently tested by Janoshik Analytical, and our COA Vault shows published reports by product and size, each verifiable on a public certificate page hosted by the testing lab or its certificate provider, which we have no control over. For the rest, product pages show a class-level specification where one is on record: we are a reseller, not a manufacturer, and we document accordingly. The full testing framework is on our quality page.
Express 3–10 days USD 90 / Standard 10–15 days USD 40. Choose at checkout. No free shipping. Mainland China dispatch · Express 3–10 / Standard 10–15 days.
Express 3–10 days USD 90 / Standard 10–15 days USD 40. Choose at checkout. No free shipping. Mainland China dispatch · Express 3–10 / Standard 10–15 days.
European payment rails
SEPA bank transfer, and instant SEPA via Paysera's hosted online-banking page where checkout offers it for your address. Card payments are not currently offered; we would rather say that here than surprise you at checkout.
Volume pricing built in
5% off at 3+ units, 10% at 5+, 15% at 10+ — applied automatically in the cart, with no negotiation emails.
First-Order Code
Switching suppliers is friction. This absorbs some of it.
Enter the code in the cart's promo field for 10% off your first order.
All compounds are supplied strictly for in-vitro laboratory research. They are not intended for human or animal use, and nothing on this page is medical advice or a medical claim.
Comparing more than one option? Best peptide suppliers in Europe after Peptide Sciences (2026) covers the wider field.