SS-31 (Elamipretide) – The Mitochondrial Peptide

SS-31 goes where almost nothing else does — inside the mitochondrial membrane. Also called elamipretide, it concentrates in the inner membrane and binds cardiolipin, and has been through human clinical trials in mitochondrial disease. 🔋 SS-31 (Elamipretide) — The Mitochondrial Peptide Targeted where energy is actually made. What it is, in plain English SS-31 is unusual among peptides in that it accumulates specifically in the inner mitochondrial membrane, where it binds cardiolipin — a lipid essential to the efficiency of the electron transport chain. It has been evaluated in human trials for primary mitochondrial myopathy and Barth syndrome, which is more clinical evidence than most compounds in this tier carry. How it helps 🔋 Targets the inner mitochondrial membrane directly 🧬 Binds cardiolipin, central to electron transport 🔬 Evaluated in human clinical trials 💧 Arrives pre-mixed — nothing to reconstitute Why people reach for it Fatigue that does not respond to sleep, iron or thyroid is often where people start looking at mitochondrial function. SS-31 is the one they reach for after the more established options have been tried. NAD+ SS-31 Approach Supplies a cofactor Targets membrane structure Location Cellular Inner mitochondrial membrane Clinical data Limited Phase 2 and 3 trials Is it a fit? SS-31 suits someone focused on fatigue and cellular energy who has already explored the more established options. Take the 60-second peptide quiz or message our team, and our providers can point the way. 🔬 For the science-minded Elamipretide is a mitochondria-targeted tetrapeptide that associates with cardiolipin in the inner mitochondrial membrane, studied for its effect on cristae structure and electron transport efficiency. It has been evaluated in Phase 2 and Phase 3 trials by Stealth BioTherapeutics. Educational only — not medical advice. Peptides discussed here are research compounds; whether any is appropriate is a decision between a patient and their licensed provider.