Description
SS-31 10mg from Oath Peptides is a mitochondria-targeted tetrapeptide (CAS 736992-21-5) supplied as freeze-dried powder. Each vial holds 10mg and costs $85. It’s sold for laboratory research only and ships from our warehouse in Gilbert, Arizona, with 2-day shipping on every order.

What is SS-31?
SS-31 is a synthetic four-amino-acid peptide with the sequence D-Arg-Dmt-Lys-Phe-NH2. Dmt is 2′,6′-dimethyltyrosine, a modified tyrosine. It has the formula C32H49N9O5, weighs about 639.8 g/mol and carries CAS number 736992-21-5.
The design alternates charge and ring: positive, aromatic, positive, aromatic. That pattern, plus its small size, lets it cross membranes. It’s drawn to cardiolipin, a lipid found almost only in the inner mitochondrial membrane, which is why it’s called mitochondria-targeted.
SS-31 10mg specifications
- Sequence: D-Arg-Dmt-Lys-Phe-NH2
- Molecular formula: C32H49N9O5
- Molecular weight: 639.8 g/mol
- CAS number: 736992-21-5
- Charge: net positive at physiological pH
- Form: white to off-white lyophilized powder
- Amount per vial: 10mg
- Testing: US lab, 99%+ purity
What researchers study SS-31 for
SS-31 has been studied in mitochondrial disease models and in clinical trials under a drug name. The research-grade peptide here is for lab use only. See NIH PubChem.
How to store SS-31
Store refrigerated at 36 to 46 °F (2 to 8 °C). It’s stable when kept cold and sealed. It dissolves in water.
Most labs reconstitute with Research Water, which is sterile-filtered water with 0.9% benzyl alcohol.
When it’s time to reconstitute, let the vial come to room temperature first. Add the solvent slowly down the inside wall of the vial so it doesn’t hit the powder directly, then swirl gently until the liquid is clear. Don’t shake it. Write the date on the label so you know how long it’s been mixed.
SS-31 10mg price and pack sizes
This is a single 10mg vial of SS-31 for $85, down from $125. If your lab goes through SS-31 quickly, the multi-packs bring the cost per vial down.
- SS-31 10mg 3 pack: $229.50, or $76.50 a vial (save 10%)
- SS-31 10mg 6 pack: $433.50, or $72.25 a vial (save 15%)
- SS-31 10mg 12 pack: $816, or $68 a vial (save 20%)
SS-31 also comes in another size: SS-31 50mg.
Why buy SS-31 from Oath Peptides
Orders leave our Gilbert, Arizona warehouse with 2-day shipping. We have every batch of SS-31 checked by a US lab, and purity tests at 99% or higher. You get sealed, labeled vials and a simple checkout.
SS-31 FAQ
What does Dmt mean in the SS-31 sequence?
2′,6′-dimethyltyrosine, a tyrosine with two extra methyl groups.
Why is SS-31 called mitochondria-targeted?
It binds cardiolipin, which sits almost only in the inner mitochondrial membrane.
Is SS-31 10mg for human use?
No. It’s sold for laboratory research only. It isn’t approved for human or veterinary use, and we don’t give dosing advice.
Related research peptides
Labs that order SS-31 often look at these as well:
- MOTS-c: a 16-amino-acid mitochondrial-derived peptide (CAS 1627580-64-6) supplied as freeze-dried powder
- NAD+: nicotinamide adenine dinucleotide (CAS 53-84-9), a cell coenzyme supplied as freeze-dried powder
- Epithalon: an Ala-Glu-Asp-Gly tetrapeptide (CAS 307297-39-8) supplied as freeze-dried powder
- Glutathione: reduced glutathione (GSH, CAS 70-18-8), a thiol tripeptide supplied as crystalline powder
You can also browse everything in Anti-Aging and Longevity Peptides.
Order SS-31 10mg today
Add the SS-31 10mg to your cart and check out in a couple of minutes. We’ll ship it from Arizona with 2-day delivery. Ordering for a longer project? The 12 pack gives you the lowest price per vial.
For laboratory research use only. Not for human or veterinary use. Not a drug, food or cosmetic product. Oath Peptides doesn’t give dosing or medical advice.





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