Buy SS-31 in the UK
SS-31, known by its non-proprietary name elamipretide, is a four-residue peptide that targets mitochondria. Vials of 10mg and 50mg. Research use only.
from £26.992 options
- In UK stock Sent from Britain
- Leaves the same day When ordered before 2pm
- Tracked shipping No charge over £75
- Certificate of analysis Available on request
Prices for SS-31 start at £26.99 for the 10mg vial, and all of it is already in British stock at diluents.co.uk rather than sourced to order. There are 2 strengths to choose from (10mg, 50mg), offered as vial. Order on a weekday before 2pm and the parcel leaves that day, tracked, in a box that gives no clue to its contents.
Because the parcel never leaves the country, nothing has to clear customs, no import charge falls due and nothing is held at a border. Each batch tests at ≥99% by HPLC, and a certificate of analysis for the stock you receive is available on request.
Tracked delivery costs £4.95, or nothing above £75. The ordering steps, one by one.
Every SS-31 size and format
2 to choose from
SS-31 10mg
Vial · £2.70/mg
SS-31 50mg
Vial · £1.08/mg
Elsewhere on the Cellular & Longevity shelf
Whole shelf →
NAD+
Methylene Blue
What is SS-31?
A tetrapeptide directed at mitochondria. Papers may call it elamipretide, MTP-131 (its development code), or Bendavia and Ocuvia, the names used in trials.
Specification
| Residues | 4 |
|---|---|
| Other names | Elamipretide, MTP-131, Bendavia |
| Molecular formula | C32H49N9O5 |
| Molecular weight | 639.8 |
| CAS | 736992-21-5 |
| Purity | ≥99% by HPLC |
| Vial strengths | 10mg, 50mg |
| Certificate of analysis | Available on request |
Which studies have looked at SS-31?
All of the published work on SS-31 is pre-clinical, and no paper listed below is a trial in humans. Grouped by study model, here is what each paper examined:
Literature reviews
- Elamipretide: A Review of Its Structure, Mechanism of Action, and Therapeutic Potential, Review (PMID 39940712)
In-vitro and animal studies
- Elamipretide (SS-31) improves mitochondrial dysfunction, synaptic and memory impairment induced by lipopolysaccharide in mice, Animal study (PMID 31747905)
Other publications
- SS-31@Fer-1 Alleviates ferroptosis in hypoxia/reoxygenation cardiomyocytes via mitochondrial targeting, Not stated in the record (PMID 39848110)
Every entry names what a study examined. No entry reports an effect in a person, and nowhere does the site give instructions on how to use anything.
Buying SS-31 in the UK: where and how
How does ordering work?
Choose a strength, add it to the basket and go through checkout; no account is needed. An order confirmation comes through at once, and since the site never takes a card, the payment details arrive separately by email.
What difference does UK stock make?
Your SS-31 is sent from a warehouse in Britain, so it skips customs, attracts no import charge and loses no days travelling from overseas. A courier collects it the same afternoon if the order is in before 2pm on a working day; the parcel then travels tracked in a plain outer box.
What do you receive?
| Purity | ≥99%, measured by HPLC |
|---|---|
| Labelling | Compound name, strength, format, purity and a research-use statement |
| Certificate of analysis | Available on request for the stock you receive |
| Delivery | UK addresses only, tracked. £4.95, or free over £75 |
| Returns | Within 14 days for sealed, unopened items, see the terms |
SS-31 reconstitution
What ships is a dry, freeze-dried cake, and bacteriostatic water is what turns it into a solution. The volume you choose sets how strong that solution ends up. Water only spreads the contents out; it never adds to or takes from the milligrams sealed in the vial.
The figures above are volumes and concentrations of a solution; none of them is a dose, and no guidance on dosing, protocols or administration is given on this site.
The figures open on the 10mg vial with 2ml added, and they update as soon as either control changes. For the syringe-scale conversion, a comparison of the waters and the keeping time of a mixed vial, use the full reconstitution calculator.
| Vial | + 1ml | + 2ml | + 3ml | + 5ml |
|---|---|---|---|---|
| 10mg | 10 mg/ml | 5 mg/ml | 3.33 mg/ml | 2 mg/ml |
| 50mg | 50 mg/ml | 25 mg/ml | 16.67 mg/ml | 10 mg/ml |
As a worked case, the 10mg vial with 2ml of bacteriostatic water comes to 5 mg/ml, which is simply the label milligrams divided by the millilitres added. Every number in the table is the concentration of a solution, never a dose. Dosage, protocol and administration guidance appear nowhere on this site.
What care does the vial need?
- A chilled vial should warm to room temperature first.
- Before every entry through the stopper, clean it with an alcohol swab.
- Let the water run down the inside wall of the glass; never squirt it onto the cake.
- Roll, never shake: foam means protein has been damaged, and rolling between the fingers avoids it.
- Expect a few minutes before it dissolves fully; a correctly mixed vial ends up clear.
SS-31 storage
| Vial, still sealed | Keep it dark, dry and cool; the freezer suits long-term storage best. |
|---|---|
| After mixing | Refrigerate it upright and shaded. A mixed solution should never be frozen. |
What is its shelf life?
| Condition | Typical life |
|---|---|
| Unopened, in a −20 °C freezer | Years. No other condition preserves a lyophilised peptide as well |
| Unopened, in a fridge at 2–8 °C | Months |
| Unopened, at room temperature | Weeks. It copes with the time in transit but should not be kept like this |
| Mixed, in the fridge | Weeks rather than months. With bacteriostatic water added, the usual working figure is four weeks, and making that possible is the job of its preservative |
| Mixed, then frozen | Not recommended. Peptides are torn by ice crystals, and each freeze–thaw cycle compounds the damage |
These are the standard figures for lyophilised peptides in general; no stability study on a single batch produced them. Time is gained by keeping it cold and dry, and lost to damp, warmth, light and rough handling. A certificate of analysis is available on request.
Is SS-31 legal in the UK?
Here it is supplied strictly as an unlicensed compound for laboratory research use only. No UK marketing authorisation covers SS-31 and it is not a licensed medicine, nor is it intended for human or veterinary use, or for food.
Compounds of this kind are not controlled drugs, and they can lawfully be sold as laboratory material; it is selling or marketing them for use by people that the law does not allow. That boundary is why this site carries no dose, protocol, route, frequency or medical claim, and why an emailed request for one is declined as well.
Some molecules in this range are also present in a licensed medicine marketed under a brand name. Its authorisation covers only the finished product for which it was granted, not the molecule in any other setting. Read the full terms.
Questions about SS-31
What names does SS-31 appear under?
The names mark different stages of its life. In the lab it was SS-31, from the Szeto-Schiller series it came out of. During development the programme called it MTP-131, and in trials it ran as Bendavia. Elamipretide is the non-proprietary name it ended up with. Whichever of the four a paper is indexed under, the subject is the same mitochondria-targeted tetrapeptide.
Which vial sizes are available?
10mg and 50mg vials.
Where in the UK can I buy SS-31?
In the UK, diluents.co.uk supplies SS-31 in 2 strengths from 10mg up to 50mg, as vials, priced from £26.99. Its only journey is from a UK shelf to your door, without customs or surcharges. The per-milligram cost falls as the size rises, from £2.70/mg on the smallest vial to £1.08/mg at the best rate, and each size lists its own figure. Because it is supplied as freeze-dried powder, the concentration is whatever you choose when it is mixed. Orders placed before 2pm on a weekday go out the same day, tracked and in plain packaging. Each batch goes through third-party lab testing and returns an HPLC result of ≥99%; the certificate covering yours is available on request, and for the steps, see how to order.
What does SS-31 cost?
Prices begin at £26.99 with the 10mg, £2.70 a milligram. Each of the 2 options carries a separate price and a separate per-milligram rate. Delivery costs £4.95, and above £75 there is no charge at all.
How much bacteriostatic water goes into SS-31?
That is up to you, since the volume added is what sets the strength. On the 10mg vial, 10 mg/ml comes from 1ml, 5 mg/ml from 2ml and 3.33 mg/ml from 3ml, while the 10mg of material inside does not change. Every one of these figures is a concentration and none is a dose.
How do you store SS-31?
Unopened and dry, it lasts for years in a freezer at −20 °C, for months refrigerated at 2–8 °C and for weeks at room temperature; the colder and drier the conditions, the longer it keeps. Once mixed with bacteriostatic water it belongs upright in the fridge, where four weeks is the usual working figure. A mixed vial must never be frozen, because ice crystals rip peptides apart and every freeze–thaw cycle repeats the damage.
What is the legal status of SS-31 in the UK?
Our SS-31 is supplied strictly for laboratory research, as an unlicensed research compound and for no other purpose. No UK marketing authorisation covers the product we sell, so it is not a licensed medicine; it is also not for human or veterinary use. Nor are we a pharmacy.
Can I see a certificate for your SS-31, and what purity is it?
Yes. HPLC puts it at ≥99%, and on request we send the certificate of analysis that matches the material in your order. To check where current stock stands before you place an order, just ask and we will tell you.
References
- Elamipretide (SS-31) improves mitochondrial dysfunction, synaptic and memory impairment induced by lipopolysaccharide in mice. Journal of neuroinflammation, 2019.. PMID 31747905
- Elamipretide: A Review of Its Structure, Mechanism of Action, and Therapeutic Potential. International journal of molecular sciences, 2025.. PMID 39940712
- SS-31@Fer-1 Alleviates ferroptosis in hypoxia/reoxygenation cardiomyocytes via mitochondrial targeting. Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 2025.. PMID 39848110
Follow any link to read the original paper in full.