The Encyclopedia of Peptides

A to Z / Longevity

SS-31

Also known as Elamipretide, Bendavia, MTP-131.

Best known for The mitochondrial peptide with modern human trials
Evidence★★★☆☆
Safety dataModerately characterised
Route injectable (subcutaneous)
United StatesInvestigational
AustraliaNot listed by name; unapproved therapeutic good
as at 16 September 2026

What it is

SS-31, elamipretide, is a four-amino-acid peptide developed as a pharmaceutical for mitochondrial disease. It is the most clinically advanced mitochondrial-targeted compound in this book, with a full pharmaceutical development programme behind it. It is investigational and not yet approved.

What the full entry covers

The book carries the rest of this entry:

Related entries

A certificate of analysis tells you what is in a vial. The evidence rating above tells you whether the compound has been shown to work in humans. Neither answers the other's question. How to read a certificate of analysis.

This page describes what is known and not known about SS-31. It is not medical advice and not a recommendation to use it.