Looking to SS-31 peptide buy? Learn what SS-31 (elamipretide) is, how to spot legitimate suppliers, typical pricing, and safety facts before you order.
You can buy SS-31 peptide (elamipretide) online from research chemical suppliers, but it is not FDA-approved for human use in the United States. Most vendors sell it strictly for laboratory research, not as a supplement or medication. That means quality, purity, and legality depend heavily on the supplier you choose.
What Is SS-31 Peptide?
SS-31, also known as elamipretide or MTP-131, is a synthetic tetrapeptide designed to target mitochondria. It binds to cardiolipin on the inner mitochondrial membrane, where researchers believe it may help stabilize energy production.
The peptide sequence is D-Arg-Dmt-Lys-Phe-NH2, and it is sometimes called a mitochondria-targeted peptide. It is not a dietary supplement; it is a laboratory compound.
Scientists have studied SS-31 for conditions linked to mitochondrial dysfunction, including Barth syndrome, primary mitochondrial myopathy, heart failure, and dry age-related macular degeneration. No formulation has received FDA approval for any of these uses.
SS-31 is not a dietary supplement, and it is not a cure for any disease. It is an investigational compound that remains in clinical research.
Is SS-31 Peptide Legal to Buy in the US?
SS-31 peptide is legal to purchase as a research chemical for in vitro or animal studies, but it is illegal to sell as a drug or dietary supplement for human consumption without FDA approval. The FDA has not approved elamipretide for any indication.
The ss-31 peptide buy online market is largely unregulated, and vendors can make claims that are not verified by the FDA. Some suppliers have received warning letters for marketing research peptides as treatments for human conditions.
The FDA has issued warning letters to companies selling peptides like SS-31 for human use. Buying from an overseas vendor does not make the purchase legal if the product is intended for human consumption.
When you buy SS-31 for research purposes, you are typically buying a product labeled "For research use only. Not for human consumption." That label is not a legal loophole for personal use.
How to Buy SS-31 Peptide Safely Online
If you are wondering where to buy ss-31 peptide, start by checking whether the supplier publishes third-party certificates of analysis (COAs) for each batch. A proper COA should show HPLC purity, mass spectrometry confirmation, and the date of testing.
- Look for a batch-specific COA, not a generic one that covers all products.
- Check that the testing lab is independent, such as Janoshik or Colmaric Analyticals.
- Avoid vendors that make health claims or sell pre-mixed injectable solutions.
- Verify the company has a physical US address and responsive customer service.
- Read the label: it should clearly state "For research use only."
Before you buy ss-31 peptide, compare cost per milligram and factor in shipping and cold-chain fees. Extremely low prices often signal low purity or mislabeled product.
| Vendor type | Typical labeling | Third-party testing | Legal for human use? |
|---|---|---|---|
| Reputable research chemical supplier | Research use only | Often yes, batch-specific | No |
| Compounding pharmacy | Requires prescription | Yes, state-regulated | Only with valid prescription, but not FDA-approved |
| Gray market or underground lab | Vague or no labeling | Rarely or never | No |
| Clinical trial site | Investigational drug | Yes, FDA oversight | Only as an enrolled participant |
SS-31 Peptide Cost and Common Product Forms
Prices for SS-31 peptide vary widely by quantity, purity, and supplier. Most vendors sell lyophilized powder in 10 mg, 30 mg, or 50 mg vials. Pre-mixed solutions are less common and more prone to degradation.
| Form | Typical size | Price range (USD) | Notes |
|---|---|---|---|
| Lyophilized powder | 10 mg | $50–$120 | Requires reconstitution; most common |
| Lyophilized powder | 30 mg | $120–$250 | Better value per mg |
| Lyophilized powder | 50 mg | $200–$400 | Bulk research use |
| Pre-mixed solution | 5 mg/mL, 10 mL | $150–$300 | Shorter shelf life; refrigeration needed |
Most research-grade SS-31 is sold as a lyophilized acetate salt with purity of 95% to 98%. Higher purity (98%+) costs more but reduces the risk of unknown impurities.
Prices change frequently, and some vendors charge extra for cold-chain shipping. Always confirm the total cost before ordering.
SS-31 Peptide Side Effects and Safety
In human clinical trials, ss-31 peptide side effects have generally been mild. The most common reports include injection site reactions, headache, dizziness, and nausea. These trials used pharmaceutical-grade elamipretide under medical supervision, not research chemicals bought online.
Long-term safety data in healthy people are lacking. Research-grade SS-31 may contain impurities, endotoxins, or incorrect concentrations. Never inject a research chemical.
Some trial participants experienced serious adverse events, but it is unclear whether those were related to elamipretide. Always report any side effect to a doctor.
If you have a medical condition, talk to a healthcare professional about approved options or clinical trials. Do not use SS-31 as a substitute for proven treatments.
SS-31 Peptide Research Status
Elamipretide has been studied in phase 2 and phase 3 trials for Barth syndrome, primary mitochondrial myopathy, and dry age-related macular degeneration. In 2024, the FDA issued a complete response letter for elamipretide in Barth syndrome, meaning it was not approved at that time.
Stealth BioTherapeutics is the main company developing elamipretide. The company has reported mixed results across different trials, and no regulatory approval has been granted.
As of 2025, no SS-31 product is FDA-approved for any human indication. Research is ongoing, but results have been mixed.
Bottom Line
Buying SS-31 peptide online is possible, but it comes with significant legal and safety caveats. The compound is not approved for human use, and research-grade products are not manufactured to pharmaceutical standards.
If you are considering SS-31 for a health condition, consult a licensed healthcare professional. Ask about clinical trials or FDA-approved therapies instead of ordering unregulated research chemicals.
Frequently Asked Questions
Is SS-31 peptide FDA-approved for human use?
No. SS-31 (elamipretide) is not FDA-approved for any human condition in the United States as of 2025. It is sold as a research chemical for laboratory use only. The FDA issued a complete response letter for elamipretide in Barth syndrome in 2024.
Where can I buy SS-31 peptide in the USA?
You can buy SS-31 peptide online from research chemical suppliers that sell it for laboratory use. These products are not intended for human consumption and are not FDA-regulated as drugs. Legitimate suppliers provide batch-specific third-party certificates of analysis.
What are the side effects of SS-31 peptide?
In clinical trials, reported ss-31 peptide side effects include injection site reactions, headache, dizziness, and nausea. These were generally mild and occurred under medical supervision. Long-term safety in healthy people is unknown.
This page provides educational research information and does not replace medical advice, diagnosis, or treatment.