The new
standardin research-grade peptides
Produced by Alpha BioPharma, each batch tested by the independent lab Janoshik. Target: a purity of ≥ 99%. Ordered before 12:00? Then your parcel leaves that same working day — anonymous and without a logo.
Research areas
Choose your category
From healing and growth peptides to GLP-1 and cognitive compounds — find what you need right away.
Bestsellers
The most trusted compounds for structural research.
Shop collectionReady to ship
Orders before 12:00 leave discreetly the same working day from our EU distribution center.
Measured purity
Batch documentation available
View all
lab reports
Most ordered
This month's bestsellers
The peptides our customers keep coming back for — all in stock and ready to ship.
How it works
From order to doorstep in three steps
Ordered on weekdays before 12:00 = shipped the same day; usually delivered the next working day in NL and BE. The lab report per batch is available online.
Choose & order
Select your peptide(s), pay securely with iDEAL, Bancontact or bank transfer. Done in under two minutes.
Processed quickly
Ordered before 12:00? Then your parcel leaves that same working day — neatly packed and checked.
Discreetly delivered
Anonymous packaging, tracked shipping from the EU. Usually delivered the next working day in the Netherlands and Belgium.
Just in
New arrivals
Freshly arrived batches and extensions to existing lines — be the first to have them.
Why Peptidewinkel
Peptides you can really build on
We were founded by researchers who were tired of having to measure purity themselves again with every new supplier. Peptidewinkel turns that around: all products come from one fixed manufacturer, Alpha BioPharma, and the batches are tested by the independent lab Janoshik. We publish the reports with a link to the original.
Our range covers the most requested categories — from healing and growth peptides (BPC-157, TB-500, Ipamorelin) to GLP-1 analogs, cosmetic peptides and peptide stacks. We aim for a purity of ≥ 99%, publish the measured values per batch and put quality above price.
Orders before 12:00 are processed the same working day. We ship 100% discreetly from the EU — no logo, no mention of the contents. Questions? Our support usually replies within a few hours via WhatsApp or Telegram.
Independently tested
Batches tested by Janoshik; reports public and verifiable.
Discreetly delivered
100% anonymous packaging, tracked from the EU.
One manufacturer
All products come from Alpha BioPharma — no changing sources.
Real support
Direct line with our team via Telegram and email.
Customer reviews
Rated by customers
We only show real, approved customer reviews here. There are none online yet.
"Verified purchase" means: the reviewer has demonstrably ordered the product from us (linked to an order in our webshop).
Frequently asked questions
Check this first?
The questions we get most often. Is your question not listed? Call or email us — we are happy to help.
All FAQsYes. All our peptides are supplied exclusively for in-vitro laboratory research. They are produced by Alpha BioPharma; batches are tested by the independent lab Janoshik Analytical. The target is ≥ 99% purity — the measured value per batch is listed on Lab Tests.
Ordered on a weekday before 12:00? Then we ship it that same working day. In the Netherlands and Belgium your parcel is usually delivered the next working day; delivery time depends on the carrier. Shipping is 100% discreet, with no logo or mention of the contents.
You can pay securely with iDEAL, Bancontact, bank transfer or crypto. All transactions are encrypted and we do not store payment details.
All our peptides are produced by one fixed manufacturer: Alpha BioPharma. Peptidewinkel does not manufacture itself; we purchase, check the documentation, package discreetly and ship from the EU.
Alpha BioPharma has batches tested by Janoshik Analytical, an independent laboratory not owned by Alpha BioPharma or Peptidewinkel. That is what we mean by "independently tested": the lab is separate from who manufactures and who sells — though it is commissioned by the manufacturer. For each report we show on Lab Tests the product, the batch (if stated), the test date, the result and a link to the original report on janoshik.com, where you can verify its authenticity yourself.
Freeze-dried (lyophilized) peptides can be stored at room temperature, preferably in a closed cabinet without large temperature fluctuations and out of direct light. Only after reconstitution with bacteriostatic water should you store the vial in the fridge (2–8 °C), and use it preferably within 30 days.
Blog
Latest articles
In-depth pieces on peptides, storage and research. Or check out the Knowledge base with 24 peptide profiles.
Buy research peptides at Peptidewinkel
Looking to buy research peptides with public lab reports? Every peptide in our shop comes from manufacturer Alpha BioPharma and batches are tested by the external lab Janoshik. Each product shows the measured purity and a link to the original report.
Browse the full range of research peptides, or check the lab tests.
Peptide bundles & stacks
Researching several peptides at once? Our peptide bundles combine commonly studied peptides in one package, at a lower price than buying them separately. Every bundle page lists exactly which products are included.
Ordered before 12:00, shipped today
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