Question 1

What does independent batch testing mean?

Accepted Answer

Material is analysed on a batch-by-batch basis by a third-party analytical laboratory to confirm identity and purity. Results are documented against that specific batch rather than against the product in general.

Question 2

What testing is performed per batch?

Accepted Answer

Verification typically covers LC-MS for identity confirmation and HPLC for purity determination. The exact methods and results for a given lot are stated on that lot's certificate of analysis.

Question 3

Do you provide certificates of analysis?

Accepted Answer

Yes. Where a batch-specific certificate of analysis has been supplied for current stock, it is attached to the product record and can be downloaded directly from the product page. If one is not shown, contact us and we will confirm availability.

Question 4

How is batch traceability maintained?

Accepted Answer

Each batch carries a unique reference which is shown on the product listing and recorded against your order, so the documentation you hold can always be matched back to the vial you received.

Question 5

Are certificates ever reused across batches?

Accepted Answer

No. A certificate belongs to a single batch. We do not carry documentation forward from a previous lot or from a different manufacturer's material.

Question 6

What are peptides?

Accepted Answer

Peptides are short chains of amino acids used in scientific research to study biological processes and molecular interactions in vitro.

Question 7

What are your compounds intended for?

Accepted Answer

All compounds are supplied strictly for laboratory research use by qualified professionals. They are not intended for human or veterinary application of any kind.

Question 8

What purity level are compounds supplied at?

Accepted Answer

Purity is reported per batch rather than as a single sitewide figure. Where batch-specific documentation has been issued, the analytically determined result is given on that certificate, which is published on the product page.

Question 9

Are products supplied lyophilised?

Accepted Answer

Yes. Compounds are supplied in lyophilised, freeze-dried form to support stability during storage and handling.

Question 10

How can I access certificates of analysis?

Accepted Answer

Where a certificate has been issued, it is published against that batch on the relevant product page and can be downloaded at any time, before or after ordering. Products with no published certificate state this on the page.

Question 11

What information is included in a certificate?

Accepted Answer

Analytical methods used, the results obtained, and the batch identification data that ties the document to the material supplied.

Question 12

Can documentation be reviewed before ordering?

Accepted Answer

Yes. Batch-level documentation is made accessible up front so you can evaluate the material before committing to an order.

Question 13

Are the vials shipped cold-packed?

Accepted Answer

Lyophilized (freeze-dried) peptide powder is generally stable enough to be shipped at ambient temperature and does not usually require refrigerated or cold-pack shipping. Recommended long-term storage conditions should still be followed after delivery.

Question 14

How should compounds be stored?

Accepted Answer

Storage guidance is listed on each product page and in the batch documentation. Lyophilised material is typically held under controlled low-temperature conditions in sealed containers, with exposure to moisture, light and temperature fluctuation minimised.

Question 15

Can you advise on reconstitution, dosage or use?

Accepted Answer

No. We do not provide dosage guidance, administration protocols, medical advice or any information relating to human or animal use. Enquiries of that nature cannot be answered.

Question 16

Who can purchase from KPeptides?

Accepted Answer

Products are supplied for research use only and are intended for professionals operating within controlled laboratory environments. Orders suggesting human or clinical use may be refused.

Question 17

How quickly are orders dispatched?

Accepted Answer

Orders placed before the daily cut-off are typically dispatched within one to two working days via Royal Mail tracked services. You will receive a dispatch email with the tracking number, which is also visible in your account.

Question 18

Do you ship within the UK?

Accepted Answer

Yes. All orders are dispatched from within the UK under controlled handling procedures, packed in protective outer packaging and tracked end to end.

Question 19

Do you ship internationally?

Accepted Answer

Our standard service covers UK addresses. If you need delivery elsewhere, contact us before ordering so we can confirm whether we can supply your location and what documentation is required.

Question 20

Can I return a product?

Accepted Answer

Because these are laboratory reagents, returns are limited to items that are unopened, undamaged and still within their stated storage conditions, or to items supplied in error or damaged in transit. See our refund policy for the full position.

Question 21

Do you offer accounts for institutions?

Accepted Answer

Yes. Get in touch with your institution's details and purchasing requirements and we will set up an appropriate arrangement.

Frequently asked questions

Verification & quality

About our compounds

Documentation & access

Storage & handling

Orders & supply

For further information on batch verification, documentation or product specifications, contact us directly.