Frequently asked questions

Anyone aged 18 or over who buys the products for laboratory research. You can order as a guest or with an account. With every order, you confirm that the products are for laboratory research use only.

You do not need a business account to order. It is an additional option for organizations. Complete the application form with the name and country of the organization, the company registration or tax number, the VAT number (if the organization has one), and a short description of the research. Organizations from any country can apply. We check an EU VAT number in the European VAT register (VIES) and review every application manually. This usually takes one business day.

Not to order. We only ask for the company registration or tax number, and the VAT number if the organization has one, when you apply for a business account. They allow us to establish that the application comes from an existing organization.

Yes. You can order as a guest or with an account. The products are still for laboratory research use only, and you confirm this with every order.

You can pay via bank transfer. If you pay by bank transfer, we ship as soon as the payment has been received. Every order comes with an invoice that shows the VAT separately.

Prices on the site include 21% VAT. The product page and the invoice also show the amount excluding VAT. For customers in another EU country with an approved business account and a valid VAT number, the reverse charge applies.

Yes. For 5 or more units of the same product, you receive a 5% discount; for 10 or more units, 10%. The discount is applied automatically in the cart.

A COA (certificate of analysis) records the analysis of a single batch. It states which compound was tested, which method was used, and what the result was. You can find the COA on the product page and on the Lab results page, where you can search by batch number.

On the label of every vial. The same number appears on the certificate of analysis. That way you know for certain that the certificate belongs to your vial.

It is the proportion of the intended compound in the chromatogram, measured by HPLC. A batch is released only if that value is ≥99%. The article What does 99% purity mean? explains what this figure does and does not tell you.

An external laboratory, independent of production. The name of the laboratory is on the certificate. The steps every batch goes through are set out in our laboratory standard.

As a lyophilized (freeze-dried) powder in a sealed glass vial, unless the product page states otherwise. In this form, a peptide remains stable for the longest time. Read more in Why lyophilize?

Follow the storage conditions on the label and the certificate. As a rule, lyophilized material is kept cool, dry, and dark, in its closed packaging.

We ship from Europe. Orders received before 3 p.m. Central European time on a working day ship the same day. Delivery takes 1⁠–⁠3 working days within Europe. You will receive a tracking number by email.

Within the Netherlands €6.95, and free on orders of €100 or more. To Belgium and Germany €8.45. To other EU countries €14.95. All rates are listed on the Shipping and returns page.

In insulated packaging that protects the vials against impact and temperature fluctuations. In warm weather, we add a cold pack.

We do not accept returns of laboratory materials, because we cannot verify the storage conditions after delivery. If a shipment is damaged or the contents are incorrect, report it within 48 hours. We will send a replacement product or credit the amount.

For in vitro laboratory research use only. The products are not medicines, foods, or cosmetics and are not intended for administration to humans or animals. The rules are set out in the RUO policy.

No. We do not answer questions about use in humans or animals. We do answer questions about analytical data, storage, and documentation.

If we see indications that products are not being used for laboratory research or are being resold to private individuals, we block the account and make no further deliveries.