SS-31
Also known as Elamipretide, Bendavia, MTP-131, Forzinity
SS-31, generic name elamipretide, is a four-amino-acid peptide that concentrates in the inner membrane of mitochondria, where it binds a lipid called cardiolipin. It has been through several human trials, and in 2025 it received accelerated approval in the US for Barth syndrome, a rare inherited mitochondrial disease. It is not licensed in the UK.
Who has SS-31 in stock
| Supplier | Listing | Price | Per mg | |
|---|---|---|---|---|
| XL PeptidesBest valueUK | SS-31 10mg Research Peptide | £26.99 | £2.70 | In stock, go |
| Baltic PeptidesEU and UK | SS-31 (Elamipretide) 50mg | €139.99 | €2.80 | In stock, go |
| PEAK_PEPTIDEInternational | SS-31 | €39.90 | – | In stock, go |
| Certa PeptidesEU and UK | SS-31 | €47.99 | – | In stock, go |
| HiPeptidesUK | SS-31 | £49.99 | – | In stock, go |
| True PeptidesInternational | SS-31 | US$60.00 | – | In stock, go |
| AminoPeptidesUK | SS-31 (10mg) & MOTS-c (10mg) & NAD+ (500mg) | Mito Peptide Bundle | £124.00 | – | In stock, go |
Live stock is checked hourly at 10 suppliers. A further 7 vetted suppliers have no live feed yet, so we never show them as in stock. We earn a commission from some supplier links when you buy. It costs you nothing extra and never changes the order, which is by price per mg.
What it has been studied for
- Barth syndrome in human trials
- Primary mitochondrial myopathy, phase 3 MMPOWER-3 trial, which missed its main endpoints
- Heart failure and kidney ischaemia in earlier human and animal work
Evidence level: Human trials. Human data exists, but read the details above before assuming it applies to you.
What happened in human trials
Approved in the US in 2025 for Barth syndrome, a rare mitochondrial disease. Injection site reactions affected most people in its trials. It has not been tested in healthy people for ageing or energy.
UK legal status
Not licensed as a medicine in the UK. Sold as a research chemical only.
Handling
Supplied as a lyophilised powder. Reconstituted with bacteriostatic water and refrigerated once mixed. Commonly 10mg or 50mg per vial.
Questions
Is SS-31 proven for ageing or energy?
No. The human trials were in specific diseases, and the largest one in mitochondrial myopathy did not meet its main goals. Claims about general energy or anti-ageing come from animal studies.
Before you buy anything, run the four-question check for red flags that apply to you.