SS-31 vs MOTS-c: price and facts compared (2026)
At the standard size, MOTS-c is the cheaper of the two today at $34.95 from Modified Aminos. Both are research-use-only materials and are not substitutes for each other.
| SS-31 | MOTS-c | |
|---|---|---|
| Category | Longevity | Longevity |
| Standard size | 10mg | 10mg |
| All sizes | 10mg, 30mg, 50mg | 10mg, 20mg, 40mg |
| Cheapest now | $70.00 at American Peptides | $34.95 at Modified Aminos |
| Price per mg | $7.00/mg | $3.50/mg |
| Vendors | 2 | 3 |
| Forms | Vial | Vial |
| Regulatory status | Investigational as elamipretide (Stealth BioTherapeutics); FDA review for Barth syndrome — verify current status. | Not approved for human use anywhere; sold only as a research chemical. |
| Stock | In stock | In stock |
SS-31 (elamipretide) is a synthetic tetrapeptide that targets cardiolipin in the inner mitochondrial membrane, developed by Stealth BioTherapeutics and studied in mitochondrial-disease trials. Research vendors sell it lyophilized in 10–50 mg vials.
SS-31 prices →MOTS-c is a 16-amino-acid peptide encoded in mitochondrial DNA, first described in 2015 in metabolic research. It is sold lyophilized in 10–40 mg vials.
MOTS-c prices →Questions
Prices are read from each vendor's product page weekly, converted to the price after any listed code, and shown before shipping. Stock status is captured at the same time. Rankings are by price only. PeptideTech earns a commission when you buy through a link; it never changes the order.
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