Frequently asked questions

All compounds are supplied as a lyophilised (freeze-dried) powder in a sealed vial — never pre-mixed. They must be reconstituted with a diluent such as bacteriostatic water before use in research.

Where we hold a certificate of analysis we publish it, covering HPLC purity and Mass Spec identity. Some lines are awaiting a certificate and are labelled COA pending. See our testing standards or browse the certificate library.

Our products are reference materials for laboratory research by qualified persons. They are not for human or animal consumption and are not medicines, foods, supplements or cosmetics. Full details are in our Research Use Only policy.

Stability. Peptides are most stable as a dry powder and degrade faster in solution — so they are shipped dry and reconstituted fresh at the point of use, which also lets you control the concentration. We explain it fully in the Knowledge Hub.

Keep the sealed powder cool, dry and out of direct light. Once reconstituted, refrigerate and avoid repeated freeze–thaw cycles. Always defer to the batch certificate and label.

Enter the product name or SKU on the certificates page, or scan the QR code on the product page — either one opens the published certificate of analysis, with no account required.

Stock is UK-held, with same day or next-day dispatch. Everything is sent Royal Mail Tracked 24. Postage is a flat £5 and the minimum order is £15. Full details on the Shipping page.

Checkout uses Fena Pay-by-Bank (Open Banking) — a secure bank-to-bank transfer authenticated in your own banking app. No card or bank details are stored on the site.

Returns are not accepted once dispatched, as a health-protection measure. Orders that arrive damaged or incorrect are covered; see our Returns policy.

Yes — for larger research or institutional orders, get in touch and we will help.

Because our products are strictly research-use-only, we do not host product reviews on-site. Instead of anecdotes, we let the independent batch certificates speak.