For laboratories and skincare brands
Peptides for UK laboratories and skincare brands, documented batch by batch
Every batch we supply comes with the manufacturer’s certificate of analysis.
Businesses and institutions only.Who can buy from us
Who we are
UK Master Peptides is a UK peptide supplier for businesses and institutions: research laboratories, skincare brands, and pharmacies or wholesalers that hold the right licence. Every batch we supply comes with the manufacturer's certificate of analysis, and every delivery note shows the batch number and expiry for each line.
We supply businesses and institutions only. We don't sell to individuals, and we don't give dosing or usage advice. Who can buy from us
Supply lines
Three lines, each with its own rules
Research-grade peptides, for laboratories
High-purity peptides for universities, research institutes and company R&D teams. Labelled for research use only, supplied to verified research buyers with a signed end-use declaration. Research-grade catalogue
Cosmetic peptide ingredients, for skincare brands
Cosmetic-grade peptides for formulators and contract manufacturers, listed by INCI name, with the specification and certificate your safety assessor will ask for. Cosmetic ingredients
Licensed medicines, for licensed buyers
Registered peptide medicines for pharmacies, wholesalers and hospitals that hold the licence their market requires. Product details are shown to verified trade accounts only. How licensed supply works
We keep the three lines apart. A product sold for research is never described for any other purpose, and a research vial is never a route to a medicine.
Documents
Every batch comes with its paperwork
When people ask us how to tell a good peptide supplier from a bad one, our answer is always the same: ask for the documents, and check that they match the vial in your hand.
- A certificate for every batch. We ship a batch only with the manufacturer's certificate of analysis. Ask for the certificate of the current batch before you order.
- Traceable to the line. The batch number and expiry are on every packing list and delivery note.
- The right temperature. Each product travels at its labelled storage temperature, with temperature indicators where needed.
- One set of documents. Quotation, proforma invoice, commercial invoice, packing list and delivery note share one layout and one numbering system, in English and Arabic.
Certificates
We share the certificate of analysis for the current batch of any product before you order. Tell us the product and strength.
Ask for a certificateWho we supply
Who we work with
Research laboratories
Universities, research institutes and company R&D teams that need a specification, a certificate and a purchase-order process. Research laboratories
Skincare brands and formulators
Brands and contract manufacturers buying cosmetic peptides for creams and serums. Skincare brands
Pharmacies, wholesalers and hospitals
Buyers of registered medicines, supplied against their licence. Licensed medicines
Buyers outside the UK
We ship from the UK to the United Arab Emirates, Egypt and Iraq, with the documents each market's import rules require. International supply
Ordering
How an order works
- Tell us what you need: the product, strength, quantity, where it is going, and the licence or institution you buy for.
- Get a quotation within one working day: price, lead time and delivery terms on one page, valid for 14 days.
- Documents: a proforma invoice, and help with any permit or registration the destination needs.
- Payment in full before dispatch, unless we agree other terms in writing.
- Shipping packed for the product's storage temperature, with a tracking number.
- Delivery with a delivery note showing batch and expiry for every line.
Our position
Peptides in the UK: what we will and won't do
A lot of what is sold as "research peptides" in the UK is bought by individuals to use on themselves, with a "research use only" sticker on the box. We don't take part in that. Our research-grade products go to verified research buyers who sign an end-use declaration, and we never describe them in terms of what they might do in a body. If you are wondering where the law stands, we have written a plain guide: Are peptides legal in the UK?
Questions
Questions we are often asked
- Do you sell to individuals?
No. We supply businesses and institutions only: research buyers we have verified, skincare companies, and licensed pharmacies, wholesalers and hospitals.
- How do I know a UK peptide supplier can be trusted?
Look for four things: a company you can find on the Companies House register, a certificate of analysis for the exact batch you are buying, a named person you can speak to, and a supplier that refuses to give dosing advice for research products. You can check all four for us on this site.
- Where do you ship from, and where to?
From the UK, to customers in the UK and to the United Arab Emirates, Egypt and Iraq, with the rest of the Gulf to follow.
- How quickly will I get a price?
We send quotations within one working day. Prices are quoted per order and hold for 14 days.
- Why is the company called UK Master Peptides?
Write our name in the one-letter alphabet biochemists use for amino acids and it becomes a peptide sixteen residues long. The story behind the name