GHK-Cu
GHK-Cu describes copper-associated glycyl–histidyl–lysine chemistry. For a supplied material, establish both the peptide and the copper-containing form. The most consequential quantity question is whether the stated amount refers to the complex, the peptide component or another defined mass basis.
What the specification needs to distinguish
| Field | Evidence question |
|---|---|
| Peptide identity | Does the record specify Gly–His–Lys and terminal chemistry? |
| Copper-containing form | What composition and coordination description is supported? |
| Nominal amount | What entity does the mass represent? |
| Analytical conditions | Which species does the method actually examine? |
| Lot result | How is the sampled material connected to the container? |
Mehr and colleagues' structural work provides a primary reference for GHK copper coordination. Płonka and colleagues' related Cu(II)–peptide analytical study shows why measurement conditions and interpretation matter. Neither is a certificate for a Knockout Labs product. [4] [5]
For the supplied material's report, the Certificate of Analysis guide helps separate identity, purity and quantity fields and their stated bases.
A mass-basis example
If a fictional record states “50 mg GHK-Cu” without defining the amount, dividing by the free peptide's molar mass would make an unverified assumption. First establish the entity represented by the numerator, then choose the corresponding molar mass. A coloured appearance cannot resolve that calculation.
The copper-complex guide explains the chemistry question; mass and molarity explains the arithmetic after the inputs are established.
Research findings need their model attached
Park and colleagues investigated cell and mouse lung-injury models. Ma and colleagues examined a mouse bleomycin-fibrosis model. Those experiments concern their defined materials, models and endpoints; they do not establish a general human repair claim. [1] [2]
In a small study of finished regimens after laser resurfacing, Miller and colleagues reported no significant objective comparison among the 13 completers, alongside a positive satisfaction finding. The regimen, procedure and different outcomes must remain visible. [3]
Catalogue and comparison routes
The GHK-Cu product record owns the current presentation. GHK-Cu versus AHK-Cu explains why changing the first residue changes the ligand identity without implying that AHK-Cu is stocked.
Request the exact form, quantity basis and lot evidence through batch documentation. No reference coordination study or product colour establishes the supplied complex's purity, content or suitability for a laboratory method.
Continue the material check
| Resource | Why open it |
|---|---|
| Repair and Tissue Research Peptides | Browse the tissue-research category and its distinct identity questions. |
| Compound Index | Find another molecular profile without confusing it with a vial. |
| Storage and Stability Across the Catalogue | Check what supports a material-specific storage condition or duration. |
| Salt Forms and Counter-Ions | Check salt and counter-ion contributions to material identity. |
Sources and scope
- Park et al. (2016). GHK-Cu in cell and mouse lung-injury models. Oncotarget.RAW 264.7 cells and mice; not clinical efficacy. Access: Original article abstract retrieved through official Europe PMC core record
- Ma et al. (2020). GHK-Cu in a bleomycin-induced fibrosis model. Life Sciences.Mouse BLM model; matrix and signalling findings. Online publication 2019; journal issue 2020. Access: Original article abstract retrieved through official Europe PMC core record
- Miller et al. (2006). GHK-Cu regimens after laser resurfacing. Archives of Facial Plastic Surgery.13 completers. Objective comparisons null, satisfaction result positive; finished regimens after laser procedure. Access: Original article abstract retrieved through official Europe PMC core record
- Mehr et al. (2020). GHK copper coordination and protein crystallography. Acta Crystallographica D.Copper coordination reference and protein-tag study; not a supplied-vial or universal solution-stoichiometry result. Access: Original abstract plus accessible full original article
- Płonka et al. (2021). Electrospray and Cu(II)–peptide complex measurements. Journal of the American Society for Mass Spectrometry.ATCUN-family Cu(II)–peptide study; related analytical-method caution, not a claim that GHK-Cu was the directly tested lot. Access: Original article abstract retrieved through official Europe PMC core record