Help

Yes. An independent laboratory tests every batch for purity and content by HPLC. Each product page shows the report for the batch currently in stock, and every order is linked to the batches it was packed from: enter your order number and email on the verify page to see them.

Lyophilised and stored at −20°C, compounds stay stable for 24 months from the analysis date. Once reconstituted, keep refrigerated at 2–8°C and use within 30 days.

Store lyophilised vials at −20°C, dry and away from light. Once reconstituted, move them to 2–8°C in the dark. Avoid repeated freezing and thawing, which degrades the peptide over time.

No. Lyophilised peptides are stable and tolerate ambient temperatures over normal transit times without loss of potency. Store at −20°C when it arrives.

Freeze-dried. Water is removed from the peptide solution under vacuum, leaving a stable powder that lasts far longer than a liquid. It’s the standard way research peptides are preserved.

The bulking agent used in freeze-drying affects texture, colour and density. This is normal and has no bearing on purity or concentration. The batch’s lab report confirms both.

Vials are lyophilised under controlled conditions, sealed and inspected before dispatch. All products are supplied for in-vitro research use only.

Orders paid before 3pm, Monday to Friday, are dispatched the same day. Orders paid after 3pm, at weekends or on bank holidays go out the next working day.

The UK only, including Northern Ireland. We don’t ship internationally at the moment.

It depends on the service you choose. Times count from dispatch. Royal Mail Tracked 48 aims to deliver within two working days, but it can take two to three working days. Royal Mail Tracked 24 aims to deliver the next working day, but it can take one to two working days. Checkout shows an estimated delivery date before you pay. Only Special Delivery is guaranteed.

Choose at checkout: Royal Mail Tracked 48 at £4.45 or Royal Mail Tracked 24 at £5.45. On orders over £100, Royal Mail Tracked 48 and Royal Mail Tracked 24 are free.

Yes. Every order ships in plain, unbranded outer packaging with nothing on the outside about what’s inside.

Contact us as soon as possible with your order number. Once the order has been dispatched, the address can’t be changed.

Yes. We email you a tracking link as soon as your order is dispatched. You can also use Track order with your order number and email at any time.

By pay by bank. At checkout you choose your bank and approve the payment in your banking app, with no card and no account details to type. Your order is confirmed straight away. We don’t take card payments.

Multi-buy savings apply automatically: 5% off when you buy three or more of a product and 10% off for five or more. For larger or institutional orders, contact us.

Contact us straight away with your order number. We can change or cancel it until it’s dispatched. Once it’s on its way, we can’t recall the parcel.

No, guest checkout is always available. An account keeps your order history, lets you reorder in one click and shows your store credit balances.

Send us a photo within 48 hours of delivery and we’ll arrange a replacement, refund or store credit.

We can’t accept returns of sealed research products once they’ve left our warehouse. See our shipping and returns policy.

We email store credit to you as a code. Enter it in the code box at checkout. If your order costs less than the credit, the rest stays on the code for next time. If you have an account, your codes and balances are on your account page.

Short chains of amino acids that act as signalling molecules in a range of biological pathways. Everything we supply is a research reagent intended strictly for in-vitro laboratory use.

No. All products are sold for in-vitro laboratory research only, and we don’t give guidance on dosing, injection or any physiological use.

No. All products are research grade only and are not licensed, approved or intended for human or veterinary use.

Individuals and organisations carrying out legitimate in-vitro laboratory research. You must be 18 or over and confirm that compounds are bought solely for research. See our research use only policy.

Check your spam or junk folder first. If it isn’t there, contact us with your order number and we’ll confirm your order or send it again.

Use Forgotten your password? on the sign-in page. If the email doesn’t arrive within a few minutes, check your spam folder.

Use the form on this page. We reply within one working day.