Glycyl-L-histidyl-L-lysine is about as short as a peptide gets while still having distinct chemistry. The histidine imidazole, the N-terminal amine and the peptide backbone nitrogen together provide the donor atoms that bind copper(II), and lysine sits outside that coordination sphere.
That arrangement is not incidental. The affinity of GHK for copper(II) is high enough that the complex forms readily under physiological conditions, which is the basis for the long-standing proposal that GHK functions in copper transport.
A solution of GHK-Cu is blue. That colour comes from d-d electronic transitions in the copper(II) centre, and its presence is a crude but real indication that the metal is coordinated rather than free in solution.
It is also why the complex is handled as light-sensitive. Coloured compounds absorb in the visible range by definition, and absorbed energy has to go somewhere. Vials are kept shielded from light for that reason, not as a general precaution.
A certificate of analysis for GHK-Cu reports the complex. Identity confirmation by mass spectrometry and purity by HPLC both describe the material as supplied, and the molecular weight quoted includes the copper rather than describing the free tripeptide.
The catalogue states it that way too: roughly 340 Da for the peptide, plus the coordinated Cu(II). Reading a figure for GHK alone against a certificate for GHK-Cu is a common way to think a lot has failed specification when it has not.
| Format | Strength | Price | Availability |
|---|---|---|---|
| GHK-Cu Duo Pack | 2 × 50 mg | AED 1090 | In stock |
Delivery is AED 40 flat and free on orders over AED 700. Payment is cash on delivery anywhere in the UAE, or USDT (TRC20) in advance, which takes 5% off the order total.
Glycyl-L-histidyl-L-lysine is about as short as a peptide gets while still having distinct chemistry. The histidine imidazole, the N-terminal amine and the peptide backbone nitrogen together provide the donor atoms that bind copper(II), and lysine sits outside that coordination sphere.
No. REVIVE LAB UAE supplies research materials and provides no dosing, administration or protocol guidance of any kind. Every product is sold for laboratory research use only and is not for human or veterinary consumption.
Stock is held in Dubai. An order confirmed before 4 PM Dubai time is dispatched the same working day, reaching Dubai and Abu Dhabi the same day and the remaining emirates within 24 hours. Delivery is AED 40 flat and free over AED 700.
Supplied for laboratory research use only. Not for human or veterinary consumption. REVIVE LAB UAE provides no dosing, administration or protocol guidance.