Sable · Question
What is the difference between GHK-Cu and TB-500?
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 TB-500?
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 TB-500?
GHK-Cu has a molecular weight of about 402.92 g/mol and TB-500 about 889 g/mol (PubChem), so TB-500 is heavier by 486.1 g/mol, a ratio of 2.21. This means 1 mg of GHK-Cu contains 2,481.9 nmol versus 1,124.9 nmol for TB-500.
How many mg of TB-500 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 TB-500 (MW 889) weighs 2.206 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of GHK-Cu and TB-500
PubChem lists GHK-Cu as C14H23CuN6O4+ (402.92 g/mol) and TB-500 as C38H68N10O14 (889 g/mol). GHK-Cu is a peptide-copper complex; TB-500 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 TB-500 in moles?
5 mg of GHK-Cu (MW 402.92) is 12.409 µmol. The same amount of TB-500 (MW 889) would weigh 11.032 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 TB-500 in moles?
50 mg of GHK-Cu (MW 402.92) is 124.1 µmol. The same amount of TB-500 (MW 889) would weigh 110.3 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 TB-500 in moles?
10 mg of GHK-Cu (MW 402.92) is 24.819 µmol. The same amount of TB-500 (MW 889) would weigh 22.064 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 TB-500 in moles?
20 mg of GHK-Cu (MW 402.92) is 49.638 µmol. The same amount of TB-500 (MW 889) would weigh 44.128 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 TB-500 in moles?
30 mg of GHK-Cu (MW 402.92) is 74.456 µmol. The same amount of TB-500 (MW 889) would weigh 66.192 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 TB-500 in moles?
100 mg of GHK-Cu (MW 402.92) is 248.2 µmol. The same amount of TB-500 (MW 889) would weigh 220.6 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of TB-500 equals how many mg of GHK-Cu in moles?
10 mg of TB-500 (MW 889) is 11.249 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 4.532 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 2 mg vial of TB-500 equals how many mg of GHK-Cu in moles?
2 mg of TB-500 (MW 889) is 2.25 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 0.9065 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of TB-500 equals how many mg of GHK-Cu in moles?
5 mg of TB-500 (MW 889) is 5.624 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 2.266 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 15 mg vial of TB-500 equals how many mg of GHK-Cu in moles?
15 mg of TB-500 (MW 889) is 16.873 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 6.798 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 20 mg vial of TB-500 equals how many mg of GHK-Cu in moles?
20 mg of TB-500 (MW 889) is 22.497 µmol. The same amount of GHK-Cu (MW 402.92) would weigh 9.065 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 TB-500?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-tb-500/#sqa-038982
APA
Sable Peptides. (2026, October 11). *What is the difference between GHK-Cu and TB-500?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-tb-500/#sqa-038982
BibTeX
@misc{sable_#sqa-038982_2026,
author = {{Sable Peptides}},
title = {{What is the difference between GHK-Cu and TB-500?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/ghk-cu-vs-tb-500/#sqa-038982}},
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