What Does GHK-Cu Dissolve In? Solvents Explained
Solubility behaviour is where compounds in this library differ most sharply from one another. For GHK-Cu, the determining factors are structural: tripeptide-copper(ii) complex (gly-his-lys : cu²⁺).
In plain English
Dissolves readily in water, and unmistakably: the solution is blue. That colour comes from the copper itself. If your solution is pale, colourless, or greenish rather than clear blue, the chemistry has changed and the vial should be discarded.
What GHK-Cu actually is
GHK-Cu is three amino acids holding onto a copper atom — and the copper is part of the molecule, not an additive. It was identified in human blood in 1973, and researchers noticed its levels fall considerably with age. It is the only compound here whose condition you can partly judge by looking at it.
Supplied for laboratory research use only — not for human or animal use.
Third-party tested by HPLC and LC-MS, ≥99% purity, with a Certificate of Analysis on every order. Ships across Canada.
Technical detail below
How GHK-Cu behaves in solution
Freely water-soluble, and unmistakable: GHK-Cu solutions are a distinct blue. That colour is the copper(II) coordination itself, which makes this the one compound here whose integrity you can partly assess by eye. A properly reconstituted vial gives a clear, evenly blue solution.
Suitable solvents, in order
Structural basis
GHK-Cu is tripeptide-copper(ii) complex (gly-his-lys : cu²⁺). GHK was identified by Loren Pickart in 1973 as a factor in human plasma whose concentration declines markedly with age. The decisive later finding was that its activity depends on chelated copper(II) — the peptide and the metal function as a unit. GHK-Cu is therefore a coordination complex, not simply a peptide, and it is the only such compound in this catalogue.
What GHK-Cu is studied for
The best-populated area of the GHK-Cu literature, examined in dermal fibroblast models.
Studied for effects on the MMP/TIMP balance governing matrix turnover.
Copper itself is an angiogenic cofactor, and the complex is studied in that context.
Plasma GHK falls substantially between early and later adulthood, a finding central to research interest in the molecule.
Summarizes published preclinical literature. Provided for research reference only; not a claim of efficacy or a description of human use.
More GHK-Cu reference
Lyophilized and reconstituted storage conditions, plus the practical working window.
Diluent selection, dissolution behaviour, and the calculator preset for this compound.
The specific chemical routes by which this molecule breaks down, and how to limit each.
Which assays are informative for this molecule, and what to actually check on its COA.
Compound-specific bench practices, and the errors most often made with this molecule.
What to inspect on arrival, and which conditions actually warrant rejecting a vial.
Questions specific to this compound — structure, chemistry, and common misconceptions.
Solubility reference for other compounds
GHK-Cu is supplied strictly as a research chemical for in-vitro laboratory and research use only. It is not intended for human or animal consumption, diagnostic, or therapeutic use. This page is educational laboratory-handling reference information — not medical advice, not usage guidance, and not a protocol.