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We supply businesses and institutions only. No sales to individuals, and no dosing or usage advice.
UK Master Peptides
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Terms of supply

Version 1, effective 9 November 2026

These terms apply to every quotation we give and every order we accept. We've written them in plain English. If anything here conflicts with a quotation we've confirmed in writing, the quotation wins for that order.

  1. Who we are

UK Master Peptides, a peptide distributor based in London. "We" and "us" mean UK Master Peptides; "you" means the business or institution buying from us.

  1. Business customers only

We supply businesses and institutions only, never individuals buying for themselves. By ordering, you confirm you are buying for a business or institution. Your own terms of purchase don't apply unless we agree to them in writing.

  1. Quotations and orders

3.1 Every order is quoted. A quotation is valid for 14 days from its date and is subject to stock.

3.2 An order is accepted only when we confirm it in writing, normally by sending a proforma invoice.

3.3 We may decline an order for any lawful reason, including where the checks in section 4 aren't complete.

3.4 Pre-orders. A product that isn't in UK stock can be pre-ordered. Nothing is charged when a pre-order is placed. A pre-order becomes an order when we confirm it in writing under 3.2, with its price and delivery date; we then deliver within 14 days of that confirmation for UK addresses. Payment is due as set out in section 6, and the checks in section 4 apply as to any order.

  1. Product lines and permitted use

Each product belongs to one line, and each line has its own rules. You agree to keep to the rules of the line you buy from.

4.1 Research-grade. Supplied only to universities, laboratories and companies whose research purpose we can verify. Every order needs a signed end-use declaration: laboratory research by qualified staff only, no use in people or animals, and no resale for those uses. Research-grade products are not for human or veterinary use. We give no dosing or usage advice for them.

4.2 Cosmetic ingredients. Supplied for topical cosmetic formulation only, never for injection. You are responsible for the compliance of any product you make with them, including its safety assessment, notification and any claims you make for it.

4.3 Licensed medicines. Supplied only as registered products, to licensed buyers, where the product is registered in the destination market, and only against your licence and any import permit the destination requires. Controlled drugs are imported and exported only under a Home Office licence.

4.4 Products are supplied only where they are registered or permitted for the destination market.

  1. What you confirm to us

When you order, you confirm that:

  • the information you give us about your organisation, licences and intended use is true and complete, and you'll tell us if it changes;
  • you hold every licence, permit and registration needed to buy, import and use the products in your country;
  • you'll keep to the permitted use of each product line (section 4).

  1. Prices and payment

6.1 Prices are as stated in the quotation, in the currency stated.

6.2 Prices exclude import duties, taxes and registration fees in the destination country unless stated. VAT is added where it applies.

6.3 Payment is due in full before dispatch, unless other terms are agreed in writing. The proforma invoice gives the payment details.

  1. Delivery

7.1 Delivery follows the Incoterms 2020 rule stated in the quotation; we quote DAP unless agreed otherwise. The Incoterm decides where delivery happens, when risk passes to you and who handles import clearance.

7.2 Lead times and delivery dates are estimates. We'll tell you promptly if we expect a delay.

7.3 We pack each product for its labelled storage temperature. Every delivery comes with a packing list and delivery note showing the batch and expiry for each line.

  1. Checking deliveries and making claims

8.1 Please check quantities, batch numbers and packaging against the delivery note when the delivery arrives.

8.2 Report any shortage or damage within 48 hours of delivery, with photographs. We can't accept claims for shortage or transit damage reported later.

8.3 Temperature-controlled products cannot be returned once delivered, unless they are faulty. Other returns need our written agreement first. Claims and returns explains the process.

  1. Quality and documents

9.1 We ship a batch only with its manufacturer's certificate of analysis. We are a distributor; the certificate comes from the product's manufacturer.

9.2 We promise that each product, when delivered, matches its description and the certificate of analysis for its batch. If it doesn't, we'll replace it or refund the price paid for it.

9.3 Apart from the promise in 9.2, and as far as the law allows, we give no other promises about the products, including about their suitability for any particular purpose.

  1. Ownership

Ownership of the products passes to you when we have received payment for them in full. Risk passes as set out in section 7.

  1. Our liability

11.1 Our total liability to you for any order is limited to the price paid for the products in that order.

11.2 We are not liable for loss of profit, loss of business, loss of data or any indirect or consequential loss.

11.3 We are not liable for any loss arising from use of a product outside its permitted use (section 4).

11.4 Nothing in these terms limits or excludes liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for anything else that can't be limited or excluded by law.

  1. Refusing, suspending or cancelling supply

We may refuse, suspend or cancel an order, or close an account, if we can't complete our checks, if information you've given us is untrue, if the law doesn't allow the supply, or if a product is used or resold outside its permitted use. If we cancel an order you've paid for and haven't received, we refund what you paid for the undelivered products.

  1. Export controls and sanctions

You agree not to export, re-export or supply the products in breach of UK sanctions or export controls, or those of any other country that apply to you. We may refuse any order that would put us in breach of them.

  1. Events outside our control

We aren't responsible for delays or failures caused by events outside our reasonable control, such as transport disruption, customs holds, strikes, extreme weather or government action. We'll tell you as soon as we can and do what we reasonably can to limit the effect.

  1. Personal information

We use personal information as set out in our privacy notice, including the details we collect to verify research buyers and licensed buyers.

  1. General

16.1 These terms, with the quotation and our written order confirmation, are the whole agreement between us for each order.

16.2 We may update these terms. The version on this page when we accept your order applies to that order.

16.3 If a court finds part of these terms unenforceable, the rest still applies.

16.4 If we don't enforce a right straight away, we can still enforce it later.

16.5 Only you and we have rights under these terms.

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