GHK is the three-amino-acid peptide glycyl-L-histidyl-L-lysine. GHK-Cu refers to its copper(II) complex. The free peptide and its copper complex should be distinguished when reading a study or material specification. [1]
For laboratory and analytical research only. Not for human consumption, medical, diagnostic, therapeutic, or veterinary use.
Identity and research context
Lau and Sarkar investigated copper(II) interactions with GHK using titration and visible-absorption spectroscopy. Their work examined solution species and binding under specified experimental conditions. It does not establish the composition of a commercially supplied vial. [1]
Separate research by Maquart and colleagues examined GHK-Cu in fibroblast cultures. Cell-culture observations do not establish human outcomes or the performance of an AlphaGrade product. [2]
Documentation and lot traceability
Product- or lot-specific documentation may be available depending on the material and lot. Request the current lot’s documentation through Contact. Include the product name and the lot identifier from the label. Check that the document identifies the same material and lot before interpreting its results. A report for another brand or lot does not establish the properties of your material.
For GHK-Cu, ask whether a stated mass refers to the copper complex or a peptide-equivalent quantity, and how copper content and identity are documented. The catalog’s “50 mg” name alone does not resolve that distinction.
AlphaGrade listing
BioMod GHK-Cu 50 mg. Check the listing for current commercial details.
Frequently asked questions
Are GHK and GHK-Cu interchangeable names?
No. GHK names the peptide; GHK-Cu identifies a copper complex. Preserve that distinction when comparing material specifications and research. [1]
Does the vial name establish copper content?
No. Request material-specific documentation rather than inferring composition or mass basis from the product name.
References
- Lau SJ, Sarkar B (1981). Experimental study of copper(II) interactions with GHK. Biochem J. 199(3):649–656. DOI: 10.1042/bj1990649. Primary paper and abstract.
- Maquart FX et al. (1988). GHK-Cu and collagen synthesis in fibroblast cultures. DOI: 10.1016/0014-5793(88)80509-X. PMID: 3169264. Primary-study record.
The cited literature describes the compound or its components. It does not test, certify, or establish the suitability of any material supplied by AlphaGrade.
