Question 1

What is Peptidewinkel?

Accepted Answer

Peptidewinkel is a European supplier of research-grade peptides. We supply peptides from manufacturer Alpha BioPharma, tested by the independent lab Janoshik, for research purposes, shipped from and within the EU via peptidewinkel.com.

Question 2

Are your peptides intended for human consumption?

Accepted Answer

No. Our peptides are supplied exclusively for research purposes (research only) and are not intended for human or animal consumption. Always read the accompanying documentation.

Question 3

Which peptides do you carry?

Accepted Answer

Our focus is on healing & recovery (BPC-157, TB-500, GHK-Cu), growth peptides (CJC-1295, Ipamorelin, MK-677, Tesamorelin), fat loss (Semaglutide, Tirzepatide, Retatrutide, AOD-9604), cognitive (Selank, Semax, Cerebrolysin), sexual health (PT-141) and research supplies.

Question 4

How do I know a peptide is pure?

Accepted Answer

All our products come from manufacturer Alpha BioPharma. Batches are tested by the independent lab Janoshik Analytical (commissioned by the manufacturer). Our Lab Tests page shows the product, test date, result and a link to the original report on janoshik.com for every report.

Question 5

What purity do you maintain?

Accepted Answer

We aim for a purity of ≥ 99%. Most tested batches achieve this; a few are slightly lower (for example around 96–98%). We are transparent about this: the exact value measured by Janoshik is shown per report on our Lab Tests page.

Question 6

How are the vials packaged?

Accepted Answer

Lyophilised peptides are filled into pharmaceutical glassware under argon and sealed with butyl rubber stoppers to prevent degradation.

Question 7

How can I pay?

Accepted Answer

iDEAL, Bancontact, credit card via a secure payment platform, and cryptocurrency (USDT, USDC, BTC, ETH). Bank transfer is possible on request.

Question 8

Do I need an account?

Accepted Answer

No, you can order as a guest. An account gives access to order history, faster checkout and the loyalty programme.

Question 9

Will my order appear recognisably on my statement?

Accepted Answer

No. Payments appear under a neutral, unrecognisable description.

Question 10

Is there a minimum order value?

Accepted Answer

No. Orders from €150 are shipped free of charge within the EU.

Question 11

Where do you ship from?

Accepted Answer

Exclusively from the European Union to EU countries. No customs, no import lottery.

Question 12

What are the delivery times?

Accepted Answer

Netherlands 1-2 business days, Belgium/Germany 2-3 business days, rest of EU 3-5 business days. Orders placed before 12:00 on business days are shipped the same day.

Question 13

Is the packaging discreet?

Accepted Answer

Yes, 100%. Neutral outer packaging without product names, logos or references to the contents.

Question 14

Do you ship refrigerated?

Accepted Answer

For temperature-sensitive peptides (e.g. GLP-1 analogues) we offer a refrigerated transit option during checkout.

Question 15

Do I get a track & trace code?

Accepted Answer

Yes, after shipping you will receive a track & trace code by email.

Question 16

How do I reconstitute a peptide?

Accepted Answer

Use bacteriostatic water (BAC water) or sterile water. We provide the recommended dilution ratio per product. Use our Peptide Calculator to calculate units per insulin syringe.

Question 17

How do I store lyophilised peptides?

Accepted Answer

Unopened (freeze-dried), peptides can be stored at room temperature in a closed cabinet, away from direct light and without large temperature fluctuations. Under these conditions the shelf life is 24+ months. Refrigeration is only needed after reconstitution.

Question 18

How long does a reconstituted peptide remain usable?

Accepted Answer

After reconstitution with bacteriostatic water, store the vial in the refrigerator (2–8 °C) and preferably use it within 30 days. We can specify this further per peptide — contact us for exact guidelines.

Question 19

Can I return a peptide?

Accepted Answer

Due to the nature of the product (research-grade, cold-sensitive) returns are in principle not possible. Unopened and unrefrigerated products can be returned within 14 days after consultation.

Question 20

What if my package arrives damaged?

Accepted Answer

Take photos of the packaging and contents and send them to info@peptidewinkel.com within 48 hours. We will arrange a replacement or refund.

Question 21

What if my order does not arrive?

Accepted Answer

Contact info@peptidewinkel.com. After investigation we will arrange free re-shipment or a refund.

Question 22

How can I reach you?

Accepted Answer

Fastest via WhatsApp: +31 970 102 838 89. Email (also for orders and after-sales): info@peptidewinkel.com, response within 1–3 business days. Our Telegram channel is for updates only, not for personal messages.

Question 23

What is the response time?

Accepted Answer

Telegram: usually within a few hours. Email: within 1 business day.

Frequently asked questions

1About Peptidewinkel

2Quality & lab tests

3Ordering & payment

4Shipping & delivery time

5Reconstitution & storage

6Returns & guarantee

7Customer service

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