Sable · Question
What is the difference between GHK-Cu and PT-141?
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 PT-141?
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 PT-141?
GHK-Cu has a molecular weight of about 402.92 g/mol and PT-141 about 1025.2 g/mol (PubChem), so PT-141 is heavier by 622.3 g/mol, a ratio of 2.54. This means 1 mg of GHK-Cu contains 2,481.9 nmol versus 975.4 nmol for PT-141.
How many mg of PT-141 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 PT-141 (MW 1025.2) weighs 2.544 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of GHK-Cu and PT-141
PubChem lists GHK-Cu as C14H23CuN6O4+ (402.92 g/mol) and PT-141 as C50H68N14O10 (1025.2 g/mol). GHK-Cu is a peptide-copper complex; PT-141 is a cyclic peptide. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of GHK-Cu equals how many mg of PT-141 in moles?
5 mg of GHK-Cu (MW 402.92) is 12.409 µmol. The same amount of PT-141 (MW 1025.2) would weigh 12.722 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 PT-141 in moles?
50 mg of GHK-Cu (MW 402.92) is 124.1 µmol. The same amount of PT-141 (MW 1025.2) would weigh 127.2 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 PT-141 in moles?
10 mg of GHK-Cu (MW 402.92) is 24.819 µmol. The same amount of PT-141 (MW 1025.2) would weigh 25.444 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 PT-141 in moles?
20 mg of GHK-Cu (MW 402.92) is 49.638 µmol. The same amount of PT-141 (MW 1025.2) would weigh 50.889 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 PT-141 in moles?
30 mg of GHK-Cu (MW 402.92) is 74.456 µmol. The same amount of PT-141 (MW 1025.2) would weigh 76.333 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 PT-141 in moles?
100 mg of GHK-Cu (MW 402.92) is 248.2 µmol. The same amount of PT-141 (MW 1025.2) would weigh 254.4 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of PT-141 equals how many mg of GHK-Cu in moles?
10 mg of PT-141 (MW 1025.2) is 9.754 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 3.93 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of PT-141 equals how many mg of GHK-Cu in moles?
5 mg of PT-141 (MW 1025.2) is 4.877 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 1.965 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 PT-141?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-pt-141/#sqa-038906
APA
Sable Peptides. (2026, October 11). *What is the difference between GHK-Cu and PT-141?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-pt-141/#sqa-038906
BibTeX
@misc{sable_#sqa-038906_2026,
author = {{Sable Peptides}},
title = {{What is the difference between GHK-Cu and PT-141?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-pt-141/#sqa-038906}},
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