SS-31
metabolicSS-31 is a research-use-only peptide. PeptideSource compares suppliers on purity, COAs, and price-per-mg.
Also known as: Elamipretide, SS31, MTP-131, MTP-31, SS-Mito, SS Mito
SS-31 is a mitochondrial-targeted peptide. It functions by binding to cardiolipin, a phospholipid unique to the inner mitochondrial membrane, thereby stabilizing mitochondrial structures and reducing oxidative stress. Early work on SS-31 focused on its potential to mitigate mitochondrial dysfunction in metabolic disorders. Its interaction with the electron transport chain has been a particular area of interest. Today, it is primarily studied for its effects on:
- Mitochondrial disease models
- Cardiovascular health
- Neurodegenerative disorders
- Metabolic syndrome
- Muscle function
It is also being studied for its effects on aging-related cellular processes.
PeptideSource editorial · Updated Jul 18, 2026
For research use only. PeptideSource does not sell peptides directly. Compare third-party supplier listings at your own discretion.
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| Product | SS-31 | SS-31 | SS-31 | | SS-Mito | SS-31 | SS-31 | SS-31 | SS-31/Elamipretide - | SS31 Elamipretide | MTP-31 | SS-31 |
| Size | 50 mg | 30 mg | 10 mg | 25 mg | 10 mg | 10 mg | |||||
| Price | $1125.00 | $123.75 | $139.00 | $169.00 | $109.99 | $49.99 | $150.00 | $67.00 | $74.95 | $79.99 | $99.99 |
| Price/mg | $2.25/mg | $2.48/mg | $2.78/mg | $3.38/mg | $3.67/mg | $5.00/mg | $6.00/mg | $6.70/mg | $7.50/mg | $8.00/mg | $10.00/mg |
| Price change | 0% (10d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (10d) | 0% (16d) | 0% (10d) | 0% (10d) |
| Stock | In stock | In stock | In stock | In stock | In stock | In stock | In stock | In stock | In stock | In stock | In stock |
| Shipping | Reliable US shipping | 2–3 days | US shipping | Same-day dispatch before 12PM EST | UPS 2-Day | Same-day US shipping | Same/next-day dispatch | Same-day dispatch before 1PM PST | 3–5 days | UPS 2nd Day Air | US Priority Mail $9.99; UPS expedited 1–4 days |
| Reviews | 5.0(3) | 5.0(22) | 5.0(9) | 5.0(1) | 4.8(75) | 4.7(31) | 1.0(4) | — | 2.6(12) | 5.0(6) | — |
| Purity | 99.99% | 99% | 99% | — | 99% | 99% | 99% | 99% | 99% | 99% | — |
| COA | — | — | — | — | — | — | — | — | |||
| Bulk discount | — | — | — | — | — | — | — | — | — | — | — |
Blends that contain SS-31
Multi-peptide products that include SS-31 as an ingredient.
