Sable · Question
What is the difference between SS-31 and Matrixyl?
SS-31 is a mitochondria-targeted tetrapeptide (Szeto-Schiller peptide) that associates with cardiolipin in the inner mitochondrial membrane, studied in mitochondrial bioenergetics research (peptide, MW about 639.8 g/mol).
Research use only. Not for human consumption. No health claims.
Last verified 2026-10-10
What is the difference between SS-31 and Matrixyl?
SS-31 is a mitochondria-targeted tetrapeptide (Szeto-Schiller peptide) that associates with cardiolipin in the inner mitochondrial membrane, studied in mitochondrial bioenergetics research (peptide, MW about 639.8 g/mol).
Which is heavier, SS-31 or Matrixyl?
SS-31 has a molecular weight of about 639.8 g/mol and Matrixyl about 802.1 g/mol (PubChem), so Matrixyl is heavier by 162.3 g/mol, a ratio of 1.25. This means 1 mg of SS-31 contains 1,563 nmol versus 1,246.7 nmol for Matrixyl.
How many mg of Matrixyl are equimolar to 1 mg of SS-31?
1 mg of SS-31 (MW 639.8) is 1,563 nmol. The same number of moles of Matrixyl (MW 802.1) weighs 1.254 mg. Equimolar comparisons matter when testing two compounds side by side in the same assay.
Compare the molecular formulas of SS-31 and Matrixyl
PubChem lists SS-31 as C32H49N9O5 (639.8 g/mol) and Matrixyl as C39H75N7O10 (802.1 g/mol). SS-31 is a peptide; Matrixyl is a lipopeptide. These formulas refer to the parent compounds without salt counter-ions.
A 5 mg vial of Matrixyl equals how many mg of SS-31 in moles?
5 mg of Matrixyl (MW 802.1) is 6.234 µmol. The same amount of SS-31 (MW 639.8) would weigh 3.988 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of Matrixyl equals how many mg of SS-31 in moles?
10 mg of Matrixyl (MW 802.1) is 12.467 µmol. The same amount of SS-31 (MW 639.8) would weigh 7.977 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 5 mg vial of SS-31 equals how many mg of Matrixyl in moles?
5 mg of SS-31 (MW 639.8) is 7.815 µmol. The same amount of Matrixyl (MW 802.1) would weigh 6.268 mg. This equimolar conversion lets two compounds be compared at matched molar amounts in the same experiment.
A 10 mg vial of SS-31 equals how many mg of Matrixyl in moles?
10 mg of SS-31 (MW 639.8) is 15.63 µmol. The same amount of Matrixyl (MW 802.1) would weigh 12.537 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 SS-31 and Matrixyl?. UK Research Peptide Reference. Retrieved 11 October 2026, from https://www.sablepeptides.co.uk/questions/compare/matrixyl-vs-ss-31/#sqa-040646
APA
Sable Peptides. (2026, October 11). *What is the difference between SS-31 and Matrixyl?*. UK Research Peptide Reference. https://www.sablepeptides.co.uk/questions/compare/matrixyl-vs-ss-31/#sqa-040646
BibTeX
@misc{sable_#sqa-040646_2026,
author = {{Sable Peptides}},
title = {{What is the difference between SS-31 and Matrixyl?}},
year = {2026},
howpublished = {\url{https://www.sablepeptides.co.uk/questions/compare/matrixyl-vs-ss-31/#sqa-040646}},
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