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PX1 Labs SS-31 50 mg research peptide vial
Anti-Aging & Longevity

SS-31

Mitochondria-targeting peptide for cellular energy

Elamipretide · mitochondria-targeting tetrapeptide

A mitochondria-targeted peptide (elamipretide) — known for calm cellular energy and lower oxidative stress, not stimulant buzz.

€69.9950 mg · LyophilizedIn stock
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Purity 99%+ HPLC
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Documentation CoA included

For laboratory and in vitro research use only. Not for human or veterinary use, and not for use in diagnostic procedures.

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ClassMitochondria-targeting tetrapeptide
Half-lifeHours
CategoryAnti-Aging & Longevity
Price€69.99
🧾 View Certificate of Analysis

About SS-31

SS-31 (elamipretide) is a small tetrapeptide that concentrates in the inner mitochondrial membrane, where it binds cardiolipin — the lipid central to how mitochondria produce energy. That places it at the heart of cellular-energy and oxidative-stress research.

PX1 Labs supplies SS-31 as a 50 mg lyophilized powder verified at 99%+ identity purity by HPLC, with identity confirmed by mass spectrometry. A lot-specific Certificate of Analysis is included with every order.

What it's known for

SS-31 is best known for mitochondrial energy and recovery. Here is what it is most associated with. (Supplied for laboratory research use only.)

Cellular energy

Targets the mitochondria — associated with better energy output, calm rather than stimulant.

Oxidative stress

Linked with lower mitochondrial oxidative stress.

Recovery

Discussed for post-procedure and high-oxidative-stress recovery.

What research shows

Has human trial history as elamipretide in mitochondrial conditions; community energy/recovery use is extrapolated and not proven.

How it works

SS-31 (elamipretide) concentrates in the inner mitochondrial membrane and binds cardiolipin, the lipid that organises the energy-producing machinery. By stabilising it, SS-31 is associated with more efficient energy output and less oxidative stress — calm cellular energy rather than nervous-system stimulation.

What the evidence shows

As elamipretide, SS-31 has genuine human trial history in mitochondrial and cardiac conditions, with clean early safety; the broader energy and recovery use seen in the community is extrapolated from that and not proven. Not an approved medicine.

An educational summary, not a treatment claim or medical advice.

Side effects & safety
Reference information — not medical adviceSummarised from public research literature. PX1 Labs products are supplied for laboratory research use only; not for human or veterinary use.

Commonly reported

  • Injection-site reactions (most common in trials)
  • Headache
  • Mild GI upset

Cautions & contraindications

  • Investigational (elamipretide) — not an approved drug
  • Long-term human data limited
  • Consult a clinician if on other mitochondrial/metabolic therapies
Reference protocols
Reference only — not a recommendationThe figures below are commonly cited in public and community references. They are provided for reference and comparison only — not a dosing instruction, recommendation, or medical advice. PX1 Labs products are supplied for laboratory research use only; not for human or veterinary use.
ContextCommonly cited amountFrequency
Commonly cited5–10 mg1× daily or several times weekly

Reconstitution example: e.g. 50 mg + 5 mL → 10 mg/mL; 5 mg = 0.5 mL (50 units).

Often run in courses, commonly cited around recovery or high-oxidative-stress periods.

Work out your own draw in the calculator →

What researchers commonly report — by week
Commonly reported, not guaranteedThese timelines summarise what self-experimenters and widely available community sources describe. Individual results vary widely, many notice nothing on this schedule, and these are not promised outcomes. Reference information only — not medical advice. PX1 Labs products are supplied for laboratory research use only.
Week 1–2
Calm, clean energy and reduced fatigue commonly reported.
Week 3–4
Endurance and recovery in high-demand periods cited.
Week 6+
Described as cumulative cellular-energy support.

Specifications

Every PX1 Labs lot is independently verified before dispatch. The figures below describe the product class; exact lot-specific results are documented on the Certificate of Analysis included with your order.

Compound classMitochondria-targeting tetrapeptide
CAS number736992-21-5
Molecular formulaC₃₂H₄₉N₉O₅
Molecular weight≈ 639.8 g/mol
Identity purity99%+ (HPLC)
Identity confirmationMass spectrometry
Presentation50 mg lyophilized powder
Physical formSterile-filtered, freeze-dried
Storage2-8°C; -20°C long term
DocumentationLot-specific Certificate of Analysis

Documentation & quality

SS-31 passes the same five-stage PX1 quality process applied to every product: HPLC potency analysis, mass-spectrometry identity and purity confirmation, pH and stability validation, sterility and endotoxin (LAL) testing, and QC batch-consistency verification.

A lot-specific Certificate of Analysis ships with every order. The lot number printed on your vial matches the lot ID on the document, so the material on your bench can always be checked against the data on file.

References & research

Selected peer-reviewed literature on SS-31 (via PubMed), provided for educational context. A reference does not imply a clinical claim for PX1 Labs products.

  1. Elamipretide (SS-31) improves mitochondrial dysfunction, synaptic and memory impairment induced by LPS in mice.
  2. SS-31 alleviates ferroptosis in hypoxia/reoxygenation cardiomyocytes via mitochondrial targeting.
  3. Mitochondria-targeting peptide SS-31 attenuates ferroptosis via p38 MAPK in epileptic rats.

SS-31 — questions

Is SS-31 a stimulant?

No — it works at the mitochondrial level (cellular energy), so the energy is calm, without caffeine-style jitters.

How is SS-31 supplied?

As a 50 mg lyophilized powder with a lot-specific Certificate of Analysis confirming 99%+ identity purity by HPLC.

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