SS-31 (Elamipretide) Research Peptide
SS-31 is a short synthetic peptide of four amino acids.
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Research Use Only · Not for human or veterinary consumption.
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Certificates of Analysis
Every batch is tested by an independent laboratory before release.
Verify Batch. Lot-level COA, Batch PP/SS3/062026. Check the batch number printed on your vial against the certificate below, which reports the tests run on it.
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What is SS-31 (Elamipretide)?
SS-31 is a short synthetic peptide of four amino acids. Its other name is elamipretide. Almost all of the human research on it was published under that name. It carries a positive charge and two aromatic rings. It builds up inside mitochondria, the parts of the cell that make most of its energy. There it sticks to cardiolipin, a fat found only in the inner membrane of those parts.
Product information reviewed by Dr. Martina Rossi, PhD
Scientific Contributor and Reviewer · Reviewed
SS-31 (Elamipretide) Research & Reference
What SS-31 (Elamipretide) does in published studies, and how to work with it in the laboratory, are covered in full on two dedicated pages rather than summarised here, so neither the evidence nor the handling detail is cut short.
Technical Specs
Labeled quantity is net peptide content, not gross salt weight.
SS-31 (Elamipretide) Batch Results
Batch PP/SS3/062026
- Laboratory
- Kovera Labs
- Certified
- July 30, 2026
- Sample
- 10 mg vial
- Report
- KVR-2026-01F5B4
An independent laboratory, Kovera Labs, tested a sample from this batch. These are the results on its certificate.
Purity
Pass99.361%
RP-HPLC, C18 column, 214 nm
Identity
PassConfirmed
LC-MS
Purity is an HPLC figure: the main peak’s share of everything the detector recorded at one wavelength. It’s not a weight. What a purity figure counts →
Check it with the lab. Kovera Labs’ verification page looks a certificate up by its report number. Product, batch, date and results should match this page.
Chromatogram
RP-HPLC · C18 · DAD 214 nm
Frequently Asked Questions
Is SS-31 (Elamipretide) third-party tested for purity?+−
Yes. Every batch of SS-31 (Elamipretide) is tested by an independent third-party laboratory using HPLC and MS-UPLC, confirming purity and mass identity before the batch is released. Pure Peptides does not test its own material.
Can I see the Certificate of Analysis before buying?+−
Yes. The Certificate of Analysis for the batch currently in stock can be viewed and downloaded directly on this page, before you place an order. Each certificate states the batch number, the measured purity, and the date of analysis, and can be verified independently with the issuing laboratory using the report number it carries.
What does "Research Use Only" mean?+−
It means SS-31 (Elamipretide) is supplied for in-vitro laboratory research and for no other purpose, and must not be administered to humans or animals. SS-31 (elamipretide) is legal to purchase in the United States for in vitro and non-clinical laboratory research, and is not a scheduled substance under the Controlled Substances Act. Elamipretide is the active ingredient of a prescription medicine sold under another name. The material supplied here is a research-grade preparation, is not that medicine, and holds no marketing authorisation.
How is SS-31 (Elamipretide) shipped and stored?+−
SS-31 (Elamipretide) ships from US stock with cold-chain packaging and full tracking; orders placed before noon EST on business days are typically dispatched the same business day. On arrival, store the lyophilized powder at -20°C or below, dry and protected from light.
Why do published studies call this elamipretide?+−
SS-31, elamipretide, Bendavia, MTP-131 and Ocuvia are all names for one compound. SS-31 is the laboratory designation used in the preclinical mechanism work. Elamipretide is the international non-proprietary name and is the name most trial reports use, but not all of them: the EMBRACE STEMI trial in heart attack patients was published under MTP-131, and its design paper under Bendavia. Bendavia and MTP-131 were development names, and PubChem treats them as synonyms rather than separate entries. Searching only "SS-31" will return the mechanism papers and miss the trials.
What did the clinical trials find?+−
Mixed, and the larger and better-controlled the trial, the less it found. A single four-hour infusion in people with reduced heart pumping reduced ventricular volumes at the highest dose; a later trial giving it daily for four weeks found no change in the same measurement. In Barth syndrome, the randomized half of a trial missed both primary endpoints and the open-label half that followed reported improvements. In primary mitochondrial myopathy, a 218-person phase 3 trial missed both primary endpoints. Each of these is set out in the SS-31 research article.
Compare SS-31 (Elamipretide)
A side-by-side page that tells SS-31 (Elamipretide) apart from another compound: how the two relate, which molecule the published evidence used, and whether they have been compared directly.
Metabolic & Cellular Research
Related Compounds
From the blog
Background and context on this compound.
Reviewed for scientific accuracy
Dr. Martina Rossi, PhD
PhD, Université Grenoble Alpes · Scientific Contributor and Reviewer
Dr. Rossi's doctoral research at Université Grenoble Alpes examined the vascular functions of bone morphogenetic proteins. Her peer-reviewed work spans cell and molecular biology, vascular biology, and gene therapy, in journals including Cardiovascular Research, Scientific Reports, and Brain Sciences. She reviews Pure Peptides' product, reference, and research pages for scientific accuracy against the sources they cite.