Sable · Question
What is the difference between GHK-Cu and GHRP-2?
GHK-Cu is a copper(II) complex of the tripeptide GHK, first identified in human plasma, and widely studied in skin-biology, cosmetic-science and wound-model research (peptide-copper complex, MW about 402.92 g/mol).
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Last verified 2026-10-10
What is the difference between GHK-Cu and GHRP-2?
GHK-Cu is a copper(II) complex of the tripeptide GHK, first identified in human plasma, and widely studied in skin-biology, cosmetic-science and wound-model research (peptide-copper complex, MW about 402.92 g/mol).
Which is heavier, GHK-Cu or GHRP-2?
GHK-Cu has a molecular weight of about 402.92 g/mol and GHRP-2 about 818 g/mol (PubChem), so GHRP-2 is heavier by 415.1 g/mol, a ratio of 2.03. This means 1 mg of GHK-Cu contains 2,481.9 nmol versus 1,222.5 nmol for GHRP-2.
How many mg of GHRP-2 are equimolar to 1 mg of GHK-Cu?
1 mg of GHK-Cu (MW 402.92) is 2,481.9 nmol. The same number of moles of GHRP-2 (MW 818) weighs 2.03 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of GHK-Cu and GHRP-2
PubChem lists GHK-Cu as C14H23CuN6O4+ (402.92 g/mol) and GHRP-2 as C45H55N9O6 (818 g/mol). GHK-Cu is a peptide-copper complex; GHRP-2 is a peptide. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of GHK-Cu equals how many mg of GHRP-2 in moles?
5 mg of GHK-Cu (MW 402.92) is 12.409 µmol. The same amount of GHRP-2 (MW 818) would weigh 10.151 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 50 mg vial of GHK-Cu equals how many mg of GHRP-2 in moles?
50 mg of GHK-Cu (MW 402.92) is 124.1 µmol. The same amount of GHRP-2 (MW 818) would weigh 101.5 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of GHK-Cu equals how many mg of GHRP-2 in moles?
10 mg of GHK-Cu (MW 402.92) is 24.819 µmol. The same amount of GHRP-2 (MW 818) would weigh 20.302 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 20 mg vial of GHK-Cu equals how many mg of GHRP-2 in moles?
20 mg of GHK-Cu (MW 402.92) is 49.638 µmol. The same amount of GHRP-2 (MW 818) would weigh 40.604 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 30 mg vial of GHK-Cu equals how many mg of GHRP-2 in moles?
30 mg of GHK-Cu (MW 402.92) is 74.456 µmol. The same amount of GHRP-2 (MW 818) would weigh 60.905 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 100 mg vial of GHK-Cu equals how many mg of GHRP-2 in moles?
100 mg of GHK-Cu (MW 402.92) is 248.2 µmol. The same amount of GHRP-2 (MW 818) would weigh 203 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of GHRP-2 equals how many mg of GHK-Cu in moles?
5 mg of GHRP-2 (MW 818) is 6.112 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 2.463 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of GHRP-2 equals how many mg of GHK-Cu in moles?
10 mg of GHRP-2 (MW 818) is 12.225 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 4.926 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A CoA for every lot; each vial carries a printed lot number that matches it. Ask with the lot number and we send it.
Cite this
Research use only. Not for consumption. No health claims.
Plain
Sable Peptides. (2026). What is the difference between GHK-Cu and GHRP-2?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-ghrp-2/#sqa-038854
APA
Sable Peptides. (2026, October 11). *What is the difference between GHK-Cu and GHRP-2?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-ghrp-2/#sqa-038854
BibTeX
@misc{sable_#sqa-038854_2026,
author = {{Sable Peptides}},
title = {{What is the difference between GHK-Cu and GHRP-2?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-ghrp-2/#sqa-038854}},
note = {Accessed 11 October 2026. CC BY 4.0}
}Badge
<a href="https://www.sablepeptides.co.uk/ref"><img src="https://www.sablepeptides.co.uk/badge/ref.svg" alt="Data: UK Research Peptide Reference — Sable Peptides" width="220" height="40"></a>
Date modified: 2026-10-10