Cosmetic peptide ingredients
Cosmetic-grade peptides for skincare brands and contract formulators, listed by their INCI names. Each ingredient is supplied for topical cosmetic products only, never for injection, with the documents your safety assessor needs.
| INCI name | Also known as | CAS number | Grade | Format and packs | Documents |
|---|---|---|---|---|---|
| Copper Tripeptide-1 | GHK-Cu | 89030-95-5 | Cosmetic grade | 100 mg | CoA, specification, SDS |
| Acetyl Octapeptide-3 | SNAP-8 (a trade name) | 868844-74-0 | Cosmetic grade | 10 mg | CoA, specification, SDS |
Prices are quoted per order. Request a quote
What's in a name
Cosmetic ingredients are labelled by their INCI names, the international naming system used on ingredient lists. Copper Tripeptide-1 is the INCI name for the copper complex of the tripeptide Gly-His-Lys, which chemists write as GHK-Cu. Acetyl Octapeptide-3 is an eight-residue peptide with an acetyl group on its first amino acid and an amide on its last, Ac-EEMQRRAD-NH₂; SNAP-8 is one owner's trade name for it. If you're new to the notation, what is a peptide explains how sequences and end groups are written.
Cosmetic grade or research grade?
You'll find both of these peptides sold as research chemicals in vials marked "research use only". Those are laboratory reagents, not cosmetic ingredients, and they don't come with what a cosmetic product file needs. For a product you'll sell to the public, buy cosmetic grade, under the INCI name, with a certificate for the batch you receive.
We also hold GHK-Cu as research-grade vials for laboratories. They're listed separately, sold only to verified research buyers, and aren't for cosmetic use.
The documents, batch by batch
- Certificate of analysis from the manufacturer, for the batch you receive. Ask for the current one before you order.
- Specification sheet, setting out the limits the ingredient meets.
- Safety data sheet.
What your brand needs beyond the ingredient documents, from the Responsible Person to the product notification, is set out on our page for skincare brands.
Questions formulators ask
- Which cosmetic peptides do you supply?
Copper Tripeptide-1 (GHK-Cu) and Acetyl Octapeptide-3. We add ingredients when we can supply them in cosmetic grade with full batch documents; tell us what you're looking for.
- Do you supply the ingredient as a powder or a solution?
It depends on the ingredient: the format is listed above and on each ingredient's page.
- Can you suggest a use level for my formula?
Where the manufacturer states a typical use level, we pass it on with the documents. The level you choose, and any claim you make for the finished product, are for your formulator and safety assessor to decide and support.
- Do you sell to individuals or home formulators?
No. We supply businesses.