Sable · Question
What is the difference between GHK-Cu and Semax?
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 Semax?
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 Semax?
GHK-Cu has a molecular weight of about 402.92 g/mol and Semax about 813.9 g/mol (PubChem), so Semax is heavier by 411 g/mol, a ratio of 2.02. This means 1 mg of GHK-Cu contains 2,481.9 nmol versus 1,228.7 nmol for Semax.
How many mg of Semax 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 Semax (MW 813.9) weighs 2.02 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of GHK-Cu and Semax
PubChem lists GHK-Cu as C14H23CuN6O4+ (402.92 g/mol) and Semax as C37H51N9O10S (813.9 g/mol). GHK-Cu is a peptide-copper complex; Semax 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 Semax in moles?
5 mg of GHK-Cu (MW 402.92) is 12.409 µmol. The same amount of Semax (MW 813.9) would weigh 10.1 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 Semax in moles?
50 mg of GHK-Cu (MW 402.92) is 124.1 µmol. The same amount of Semax (MW 813.9) would weigh 101 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 Semax in moles?
10 mg of GHK-Cu (MW 402.92) is 24.819 µmol. The same amount of Semax (MW 813.9) would weigh 20.2 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 Semax in moles?
20 mg of GHK-Cu (MW 402.92) is 49.638 µmol. The same amount of Semax (MW 813.9) would weigh 40.4 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 Semax in moles?
30 mg of GHK-Cu (MW 402.92) is 74.456 µmol. The same amount of Semax (MW 813.9) would weigh 60.6 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 Semax in moles?
100 mg of GHK-Cu (MW 402.92) is 248.2 µmol. The same amount of Semax (MW 813.9) would weigh 202 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of Semax equals how many mg of GHK-Cu in moles?
5 mg of Semax (MW 813.9) is 6.143 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 2.475 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Semax equals how many mg of GHK-Cu in moles?
10 mg of Semax (MW 813.9) is 12.287 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 4.95 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 30 mg vial of Semax equals how many mg of GHK-Cu in moles?
30 mg of Semax (MW 813.9) is 36.86 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 14.851 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 Semax?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-semax/#sqa-038926
APA
Sable Peptides. (2026, October 11). *What is the difference between GHK-Cu and Semax?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-semax/#sqa-038926
BibTeX
@misc{sable_#sqa-038926_2026,
author = {{Sable Peptides}},
title = {{What is the difference between GHK-Cu and Semax?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-semax/#sqa-038926}},
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