Support
20 questions across 5 categories. Can’t find what you need? Contact us.
2pm on working days (Monday to Friday, excluding UK public holidays). Orders placed before this time are dispatched the same day. Orders placed after 2pm, or on weekends and bank holidays, are dispatched on the next available working day.
Yes. Standard UK delivery is free on orders over £75. Orders under £75 incur a flat delivery charge of £4.99. Express AM-guaranteed delivery is available at £9.99 regardless of order value.
Not at present. We ship exclusively within the United Kingdom (England, Scotland, Wales, Northern Ireland). For institutional orders requiring bespoke logistics, contact us before placing your order.
All peptides are dispatched in temperature-controlled packaging to maintain compound integrity. Lyophilised products ship at ambient temperature with insulated packaging. Cold-chain products include gel ice packs at no additional cost.
Our minimum accepted purity threshold is 98%, confirmed by third-party HPLC analysis. Where purity exceeds this, the exact figure is reported on the certificate of analysis — not a rounded minimum.
Compound name and CAS number, batch reference, HPLC purity percentage with chromatogram, mass spectrometry confirmation data, the testing laboratory's name and accreditation details, and the date of analysis. Every CoA is batch-specific.
All analytical testing is commissioned from independent, ISO-accredited third-party laboratories with no commercial interest in the result. We do not issue self-certified CoAs or rely on manufacturer-supplied data.
Yes. A sample CoA is available on our Quality & Testing page. For the specific batch CoA of a compound currently in stock, contact our support team and we'll provide it within one business day.
Most synthetic peptides are not controlled substances under UK law and are not classified as licensed medicines, provided they are not marketed or used for medicinal purposes. All Premio Peptides products are supplied strictly for research use. Buyers are responsible for satisfying themselves on legality in their jurisdiction.
No. All products are for in vitro laboratory research only. They are not approved for clinical, veterinary, or human use, and must not be administered to any living organism outside a formally approved research protocol.
No. Our products are not licensed medicinal products and we do not hold MHRA approval. MHRA approval applies to medicines intended for human or veterinary use. Our compounds are research chemicals supplied for laboratory use only.
Researchers, scientists, and academics conducting legitimate laboratory or scientific research. Buyers should be affiliated with a suitable research context — a university, private laboratory, or commercial R&D organisation. We cannot supply individuals unable to confirm a lawful research purpose.
Yes. Verified institutional clients can order by PO without upfront payment. Standard terms are 30 days from invoice date, with 60-day terms available for NHS-affiliated and established accounts.
Submit an enquiry via our Institutional Accounts page or email us directly. We issue a credit application within one working day. Approval typically takes 48 hours, after which your account is activated with a named account manager.
Tiered pricing starts at 5g per compound. There is no minimum order value for account holders. For large or recurring orders, bespoke pricing is negotiated with your account manager.
Yes. We provide a full registration pack including Companies House details, VAT certificate, insurance certificates, QA policies, and third-party lab accreditation. We can also complete supplier portal registrations on your behalf.
Due to the nature of research compounds and chain-of-custody requirements, we cannot accept returns of opened products. We will replace or refund products that arrive damaged, are incorrectly dispatched, or do not match their CoA. Contact us within 7 days of delivery.
Within 2 to 4 business hours during working hours (Monday to Friday, 9am to 5pm). Enquiries sent outside these hours are handled the next working day.
Email info@premiopeptides.co.uk with your order reference number. For same-day dispatch issues, contact us before 1:30pm to allow time before the 2pm cut-off.
Yes. Our team can advise on purity grades, sequence confirmation, reconstitution, storage, and CoA documentation. Include the product name or code and what you need when you get in touch.
Still have questions? Our team responds within 2-4 business hours.