If a supplied lot fails agreed specifications, we’ll replace it at no cost or refund its purchase price in full.
Quality test failed? Free replacement or full refund.
Off-spec? Free replacement or full refund.
Why Cu²⁺ : Peptide Ratio Matters — A 90-Second Quality Check for Formulators. Read our briefing →
Why Cu²⁺ Ratio Matters — a field guide. Read →
On the Cu²⁺ ratio. Read →
The Library
Browse copper peptides and supporting laboratory products, and ask sales for the matching batch COA. Additional analytical or stability work is agreed for the product and project. Contact us about custom copper-peptide requirements.

Methodology
Read the method
Lot Data
Inside the programme
Field Note
Read the note
Applications & buyer fit
Cosmetic contexts only. Finished-product claims are the brand's to substantiate under its destination market's cosmetic rules.
Ask sales for the matching batch COA and specify any copper assay, Cu²⁺ : peptide ratio, UV-Vis, colour, or sample evidence required so it can be scoped and quoted.
The library
13 characterised Cu-peptides · documented per lot
3-mer
Copper tripeptide-1
3-mer
Copper peptide AHK
3-mer
Tripeptide-1 — the apo-peptide of GHK-Cu
12-mer
The Mn(II) analogue of the GHK metal-tripeptide
24-mer
Copper coordinated by a lysine/proline amino-acid pair
24-mer
Copper coordinated by pyrrolidone carboxylic acid (5-oxoproline)
12-mer
Biotin-GHK — the GHK metallopeptide with a biotin affinity handle
17-mer
Custom · lipidated GHK-Cu for oil-phase systems
18-mer
Custom · co-formulated copper-peptide blend to brand spec
20-mer
Custom · copper-loaded biotin-GHK for streptavidin affinity work
26-mer
Custom · copper coordinated by the carnosine dipeptide
29-mer
Custom · copper coordinated by the glutathione tripeptide
0.9% benzyl-alcohol bacteriostatic reconstitution diluent