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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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Cosmetic peptides for skincare brands

We supply cosmetic-grade peptides to skincare brands and contract formulators, listed by their INCI names and shipped with the documents your safety assessor will ask for. Everything we supply in this line is for topical cosmetic products, never for injection.

Ingredients

INCI nameAlso known asCAS numberPage
Copper Tripeptide-1GHK-Cu89030-95-5Copper Tripeptide-1
Acetyl Octapeptide-3SNAP-8 (a trade name)868844-74-0Acetyl Octapeptide-3

Pack sizes and minimum orders are confirmed on your quote.

Why cosmetic grade, not research grade

Many UK peptide sellers only offer vials labelled "research use only". Those are laboratory reagents: they aren't made or documented for cosmetic products, and putting them into a product you sell to the public leaves you without the paperwork your product file needs. Buy cosmetic grade, under the INCI name, with a certificate for the batch.

The documents you get

  • Certificate of analysis for the batch, from the manufacturer.
  • Specification sheet setting out the limits the ingredient meets.
  • Safety data sheet, on request.
  • Anything else your assessor needs from the ingredient side: ask when you request a quote.

What the UK rules ask of your brand

To make a cosmetic product available to consumers in Great Britain, GOV.UK sets out what you need:

  • A Responsible Person with a UK-established address (GOV.UK is clear that a PO box or mail-forwarding address doesn't count), who makes sure the product meets the rules.
  • A safety assessment by a qualified safety assessor, which forms part of your product information file.
  • A product information file, in English, kept for 10 years after the last batch of the product is made available.
  • A notification through the government's Submit Cosmetic Product Notifications service before the product goes on sale.

Ingredient documents are one input to that work. Claims you make for your finished product need your own evidence; we don't supply claims for ingredients.

Five questions to ask any cosmetic peptide supplier

  1. Is it sold under its INCI name, as a cosmetic ingredient? If the listing says "research use only", it isn't.
  2. Will I get the certificate for the batch I receive, not a sample certificate from an older lot?
  3. Is there a specification and a safety data sheet I can give my safety assessor before I buy?
  4. How is it stored and shipped, and will the packing list show the batch, expiry and storage condition?
  5. Who do I talk to if a delivery is short, damaged or doesn't match its documents?

We answer all five on every order: the ingredient pages show the INCI name and documents, the certificate travels with the batch, and you have one named contact from enquiry to delivery.

How ordering works

  1. Tell us the ingredient, quantity and destination, and your company details.
  2. We send a quotation within one working day, valid for 14 days, with lead time and delivery terms.
  3. We confirm your company registration and the product's intended cosmetic use.
  4. Payment before dispatch, unless agreed otherwise in writing; delivery at the labelled storage temperature, with the batch documents.

Brands outside the UK

We also supply skincare businesses in the United Arab Emirates, Egypt and Iraq, with documents for each market's customs and import rules in English and Arabic. International supply

New to peptides?

Cosmetic peptides are short chains of amino acids; what is a peptide explains the chemistry and how to read an INCI-style name such as Acetyl Octapeptide-3.

Questions brands ask

Which peptides do you supply for skincare?

Copper Tripeptide-1 (GHK-Cu) and Acetyl Octapeptide-3, in cosmetic grade.

Can I use research-grade GHK-Cu in my serum?

No. Use cosmetic grade, which is made and documented for cosmetic products. Research-grade material is for laboratory research only.

Do you sell to individuals or home formulators?

No. We supply businesses.