About

About Polder Peptides

Polder Peptides is a Netherlands-based supplier of research peptides for in vitro laboratory use. We exist to give European researchers a better option than the current choice between cheap-but-slow Chinese suppliers and expensive US resellers.

Our story

European peptide buyers have long had two bad options: buy direct from Chinese suppliers at low prices but accept 2–4 week shipping, customs seizure risk, no customer service and high minimum order quantities — or buy from US resellers who charge 3–5× markup, add €25+ shipping, and still carry customs risk with 1–3 week delivery.

Nobody was offering the obvious middle ground: a clean website, third-party testing, fast EU shipping, a broad catalog, and prices between Chinese wholesale and US reseller pricing. So we built it.

What we do

Source lyophilized peptides from established Chinese suppliers
Send every batch to an independent third-party laboratory (Janoshik) for HPLC purity and potency testing
Repackage and resell as research reagents to EU customers, shipped from the Netherlands
Keep prices fair — roughly 2–3× cost, not 5× like US resellers

Our values

Transparency. Every batch has a Certificate of Analysis. We show you the purity numbers, not just our word.
Third-party testing. We don't test in-house. Janoshik is an independent lab — their results are theirs, not ours.
Fast EU shipping. 2–5 business days to 12 EU countries, shipped from the Netherlands in discreet packaging.
Fair pricing. We charge enough to test every batch and stay in business — not enough to make you feel ripped off.

Important

All products are sold as research reagents for in vitro laboratory use only. They are not for human consumption, diagnosis, or treatment. We make no medical claims and provide no dosing advice. See our Terms & Conditions for the full disclaimer.

Contact

Email: info@polderpeptides.nl
Based in the Netherlands.