Sable · Question
What is the difference between GHK-Cu and Selank?
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).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between GHK-Cu and Selank?
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 Selank?
GHK-Cu has a molecular weight of about 402.92 g/mol and Selank about 751.9 g/mol (PubChem), so Selank is heavier by 349 g/mol, a ratio of 1.87. This means 1 mg of GHK-Cu contains 2,481.9 nmol versus 1,330 nmol for Selank.
How many mg of Selank 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 Selank (MW 751.9) weighs 1.866 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of GHK-Cu and Selank
PubChem lists GHK-Cu as C14H23CuN6O4+ (402.92 g/mol) and Selank as C33H57N11O9 (751.9 g/mol). GHK-Cu is a peptide-copper complex; Selank 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 Selank in moles?
5 mg of GHK-Cu (MW 402.92) is 12.409 µmol. The same amount of Selank (MW 751.9) would weigh 9.331 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 Selank in moles?
50 mg of GHK-Cu (MW 402.92) is 124.1 µmol. The same amount of Selank (MW 751.9) would weigh 93.306 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 Selank in moles?
10 mg of GHK-Cu (MW 402.92) is 24.819 µmol. The same amount of Selank (MW 751.9) would weigh 18.661 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 Selank in moles?
20 mg of GHK-Cu (MW 402.92) is 49.638 µmol. The same amount of Selank (MW 751.9) would weigh 37.323 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 Selank in moles?
30 mg of GHK-Cu (MW 402.92) is 74.456 µmol. The same amount of Selank (MW 751.9) would weigh 55.984 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 Selank in moles?
100 mg of GHK-Cu (MW 402.92) is 248.2 µmol. The same amount of Selank (MW 751.9) would weigh 186.6 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Selank equals how many mg of GHK-Cu in moles?
5 mg of Selank (MW 751.9) is 6.65 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 2.679 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Selank equals how many mg of GHK-Cu in moles?
10 mg of Selank (MW 751.9) is 13.3 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 5.359 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 Selank?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-selank/#sqa-038918
APA
Sable Peptides. (2026, October 11). *What is the difference between GHK-Cu and Selank?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-selank/#sqa-038918
BibTeX
@misc{sable_#sqa-038918_2026,
author = {{Sable Peptides}},
title = {{What is the difference between GHK-Cu and Selank?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-selank/#sqa-038918}},
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