Live data — every record is aggregated from real public sources. VialGrade never sells; it links out to the vendor.
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All compounds
Mitochondrial peptide
Live data

SS-31

Longevity & anti-aging

A mitochondria-targeting peptide (Elamipretide) studied in mitochondrial-function and aging research.

ElamipretideMTP-131BendaviaSS31

Get told when a price moves or a lab test changes.

Observed median price

$75

0.0 % · 30d
Every observation
DateObserved
$45.62
$68.43
$191.00
$74.95
$74.95
$74.95
$74.95
$74.95
$74.95
$72.47
$72.47
$74.97
$74.97
$74.97
$74.97
$74.97
$74.95
$74.95
$72.47
$72.47
$72.47
$72.47
$72.47
$72.47
$72.47
$72.47
$72.47
$74.95
$74.95
$74.95
$74.95
$74.95
$69.99
$69.99
$69.99
$69.99
$69.99
$69.99

Median of 4 listings' 30-day changes; 9 excluded for insufficient history.

13

Active listings

2 · 99.6%

Independent lab tests

$40–$600

Observed price range

5

Known aliases

Read from the certificate, not re-measured by VialGrade. Purity is not a grade. Purity vs grade

Understand this compound

What is SS-31?

In clinical trialsa.k.a. Elamipretide, Bendavia

A molecule that docks onto the inner membrane of mitochondria — the cell's power plants — to steady energy production in stressed tissue. In late-stage trials for rare muscle and heart diseases.

Longevity & anti-aging
⚠

Good to know: Despite advanced trial stages, it is not yet FDA-approved for any indication, and some Phase 3 results have not met their primary endpoints.

How does SS-31 work?

The science

A mitochondria-targeted tetrapeptide that binds cardiolipin in the inner mitochondrial membrane, stabilizing cristae structure and electron transport chain efficiency while reducing reactive oxygen species.

Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.

What is SS-31 researched for?

Studied for mitochondrial dysfunction in heart failure, primary mitochondrial myopathies, ischemia-reperfusion injury, and aging.

  • Longevity & anti-agingStudied in aging, cellular-senescence, and mitochondrial-function research.
How far has the research gone?

In clinical trials — has reached Phase II/III trials for Barth syndrome, primary mitochondrial myopathy, and heart failure.

Where the science stands — an approved drug is not the same as the research-grade material a vendor sells, which is unregulated regardless.

What should I check before buying?
  • Independent purity. Look for a third-party COA (Janoshik or MZ) showing a measured purity — not just a number the vendor typed.
  • Batch match. The strongest evidence is a certificate for the exact batch you’ll receive, attributed to this vendor — check the cross-verification on the listing.
  • Vendor reputation. See how the vendor is talked about in the community before trusting a new name.

Research context only — VialGrade never gives dosing, medical, or human-use guidance.

Current market

The SS-31 market

Every SS-31 listing we track — 13 in all. The standout picks first where the evidence supports them, then the full table, ranked by what a milligram really costs wherever the vendor published a strength we can read.

Open full market

Compare by real cost

Every SS-31 listing, cheapest per mg first

Sticker prices hide the size, so listings are ranked by what a milligram actually costs — with independently tested purity where it exists. All 13 are here: the last 3 are listings whose vendor never published a strength we can read, so they have no per-mg figure to sort on.

#VendorSizePricePer mgTested purityReal $/active mg
1Sports Technology Labs10mg total$40$4.00/mg—$4.01/mgbest valueView
2Ascend Bio Labs100mg total10MG / 10 Vials each$600$6.00/mg—$6.02/mgView
3Ascend Bio Labs30mg total10MG / 3 Vials each$191$6.37/mg—$6.39/mgView
4Ascend Bio Labs20mg total10MG / 2 Vials each$135$6.75/mg—$6.77/mgView
5Peptide Pros10mg total$70$7.00/mg—$7.02/mgView
6Swiss Chems10mg total$75$7.50/mg—$7.52/mgView
7Behemoth LabzUnavailable10mg total$75$7.50/mg—$7.53/mgView
8Ascend Bio Labs10mg total$75$7.50/mg—$7.53/mgView
9Ascension PeptidesUnavailable10mg total$80$8.00/mg—$8.03/mgView
10PurerawzUnavailable10mg total$91$9.12/mg—$9.16/mgView

Open the full SS-31 market

Real $/active mg divides the price-per-mg by the measured purity — the honest cost of the actual peptide, so a 90%-pure vial isn’t compared as if it were 99%. Too cheap? flags a listing far below the market rate — often underdosing or a fake, not a deal. The crown marks the cheapest non-outlier; best value marks the lowest real cost per active mg. A vendor shown as Unavailable or Low stock is priced here but not currently buyable.

Independent testing

SS-31 — independent lab tests

Real, publicly verifiable third-party tests. Purity is read from the certificate itself. A test reflects one lab’s result for one submitted batch — not a guarantee that every vial matches.

How does this data get here?

Every record below is a real certificate of analysis, gathered two ways: from the public verification feeds that independent labs (like Janoshik) publish, and from the certificates vendors post on their own product pages. We open each certificate document and read the measured purity, content, batch, and date directly off it — a scraper can’t read a number printed inside an image, so this is done by machine vision, then recorded here with a link back to the original.

Nothing here is typed in by a vendor or invented by us. Where a certificate is missing, we say so rather than filling the gap.

We re-check the lab feed, too. A “still listed” tag means the certificate is currently public in Janoshik’s database — we re-verify against the live feed and stamp the date. If a cert is later pulled, the tag flips. It’s a freshness check on the same source, not a second independent opinion.

What a certificate does & doesn’t prove

Three different questions. Purity (“how clean?”), identity (“is it the right molecule?”, a mass-spec test), and content (“did I get the labeled mg?”) are separate. A vial can be 99% pure and still be the wrong peptide, or the right peptide underdosed. We flag the measured dose against the label above; underdosing is the most common real fraud.

Who submitted the sample matters. Most of these are vendor-submitted — the seller chose which vial to send, so one good certificate doesn’t prove every batch is the same. The gold standard is a blind test, where a buyer sends a vial they bought as a normal customer. Same label doesn’t prove same product; same batch number doesn’t prove same batch.

99.6%

highest tested purity

CertificateManufacturerBatchPurityContent / doseLab
www.certapeptides.comCP-2605-SS3199.63%53.35 mgJanoshik Analytical Still listed Verify
PeptideGurus—See report—Janoshik Analytical Verify

Tested batches

Batch test records for SS-31

The full test history for one batch — who picked the sample, who tested it, and what came back. It describes the vials that were tested, never every vial they sold.

All batch records

What the research says

Scientific evidence & regulatory status

What the published literature actually shows about SS-31 — separate from any vendor’s marketing. Each finding links to its paper. This is education, not medical or dosing advice.

Regulatory status

An approved drug exists — this is not it

FDA-approved as Forzinity (elamipretide, September 2025) under accelerated approval — the first treatment for Barth syndrome, in patients weighing at least 30 kg. That rare mitochondrial disease is the only authorized use; 'SS-31' sold as research material is not the approved product.

US legal status

Research-use-only — not FDA-approved

Sold “for research use only,” this compound is not FDA-approved for human use and has not been evaluated for safety, purity, or sterility in people. It is generally not a scheduled controlled substance, so buying it as a research chemical is typically not itself a drug crime — but marketing or using it as a drug is not lawful, and it is not a dietary supplement.

Read the full US law →

General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.

Research notes aren’t product proof

Research summaries describe published literature and market data only. They do not establish the identity, quality, safety, or legal status of any listed physical product.