Frequently asked questions

Choose a product and the quantity, and click "Add to basket". Finished shopping? Click "Checkout", fill in your details and pay. You don't need an account.

With iDEAL, straight from your own banking app, or by ordinary bank transfer. With a bank transfer you get a QR code that your banking app can scan.

With each vial you get free needles and alcohol wipes and 3 ml of bacteriostatic water. Don't want them? Just switch them off in your basket.

If you sign up for our newsletter, you get 5% off your first order. You enter the code at checkout.

Ordered and paid on a working day before 18:00: shipped the same day. You'll usually receive your parcel the next working day.

1. You orderOn a working day
2. Paid before 18:00With iDEAL that's instant
3. Shipped the same dayWith track & trace
4. At your doorUsually the next working day

We ship for free from €100.00. Below that, you pay €5.00. You'll always see the costs in your basket before you pay.

Yes. As soon as your parcel is on its way, you'll get an email with a track & trace link.

No. Your parcel comes in a plain box, with no logo and no mention of the contents.

To the Netherlands and most EU countries: Belgium, Germany, France, Spain, Luxembourg, Austria, Italy, Portugal, Ireland, Denmark, Sweden, Finland, Poland and the Czech Republic. Shipping to other EU countries costs €12.95, free from €150.00. The parcel usually arrives there within 2 to 5 working days.

A peptide is a short chain of amino acids, the building blocks of proteins. Your body also makes many peptides itself, such as hormones.

That at least 99% of the powder consists of the correct peptide. We measure this with HPLC: a standard laboratory test that shows which substances are in a sample.

A CoA (Certificate of Analysis) is the test report for a batch. Among other things, it shows the measured purity. You can request the report for your batch from us.

The peptide is freeze-dried (lyophilised). As a powder it keeps much longer than as a liquid. You only dissolve it when you start working with it.

No. Our products are intended solely for laboratory research, not for human or animal consumption.

In the fridge (2–8 °C), in a dark place. For longer storage, the freezer (−20 °C) is also fine.

Sterile water with a small amount of benzyl alcohol, which inhibits the growth of bacteria. It's used in laboratories to dissolve powders such as peptides. You get 3 ml free with every vial.

You dissolve the powder in bacteriostatic water and then store the solution in the fridge. Use the peptide calculator to work out the concentration of the solution. Want a step-by-step explanation? Book a research consultation.

Yes, within 14 days of receipt, if the vial is unopened and sealed. Read everything on the Delivery & returns page.

Please contact us as soon as possible, ideally with a photo. We'll sort it out free of charge.

A personal explanation of working with peptides in a research setting: storage, dissolving and working safely. At home, at your company or online. More about the consultation.

Via WhatsApp (+31 6 57778290), email (info@solidpep.nl) or the contact form.