Zepym Health
SS-31 (Elamipretide)

Injected under the skin · 5 days a week

Research peptideEnergyMitochondria

SS-31 (Elamipretide)

SS-31 (elamipretida): a mitochondrial peptide studied for cellular energy, muscle fatigue, and recovery. Targets cardiolipin in the inner mitochondrial membrane. Subcutaneous injection. Very early-stage human evidence; most data from mito disorders.

  • Studied for cellular energy and mitochondrial function
  • Preclinical evidence in muscle and cardiac fatigue
  • Emerging clinical interest for energy-related conditions
  • Monthly$299/mo
  • Every 3 months$717 billed up front$239/mo
  • Every 6 monthsBest value$1,254 billed up front$209/mo
  • Free, discreet shipping
  • Licensed U.S. pharmacy
  • Board-certified physicians

Disclaimer: Prescription products require an online evaluation with a licensed medical professional who will determine if a prescription is appropriate. Products are compounded by a licensed pharmacy. The FDA has not reviewed or approved compounded products for any use for safety, efficacy, or quality. Compounded medications are not FDA-approved brand-name products.

How
Injected under the skin
How often
5 days a week
Each shipment
1 vial
Strengths
2 options · 0.4–0.8 mg

What is SS-31?

(elamipretida; mitochondrial-targeted peptide)

SS-31 (elamipretida) is a short peptide that crosses the mitochondrial membranes and binds to cardiolipin, a lipid critical for ATP (cellular energy) production. By supporting mitochondrial electron transport, SS-31 enhances energy generation within cells. It is being studied in mitochondrial myopathies and cardiomyopathy. Off-label use for generalized fatigue or recovery is emerging, though human evidence is limited.

What's in it

  • SS-31Targets the mitochondria

Early

human evidence; strong preclinical mitochondrial support

SS-31 is prescribed off-label for fatigue and energy based on preclinical mechanistic support and small clinical experience. It is not approved by the FDA for any indication.

Is it right for you?

  • Who it's for

    Adults interested in the newest mitochondrial peptide.

  • What sets it apart

    The only peptide here that has been through clinical trials for mitochondrial disease, at much higher doses than this.

  • Worth knowing before you start

    Redness and a firm bump at the injection site were the most common effect in trials. Rotate sites.

Results you may experience

  • Improved energy

    more consistent stamina for daily tasks and exercise

  • Better recovery

    muscles bounce back faster from workouts

  • Sustained endurance

    longer work or training sessions feel less exhausting

  • Patience required

    mitochondrial function takes weeks to shift; tracking helps

How SS-31 works

  1. Day 1

    A US-licensed physician reviews your fatigue, exercise capacity, medical history, and cardiac history. Discusses how SS-31 supports mitochondrial function and the evidence gap.

    1
  2. Week 1

    Start with subcutaneous injections, typically 3–5 days per week. Most people find the routine comfortable within days.

    2
  3. Weeks 2–4

    Energy, exercise tolerance, and recovery may begin to improve. Some notice changes within days; others take 3–4 weeks. Keep an energy and exercise log.

    3
  4. Month 2

    Your physician checks in, reviews your energy log, and adjusts dose if needed. Discuss any changes in fatigue, muscle function, or exercise capacity.

    4
  5. Beyond

    SS-31 works best with consistent dosing and exercise. Your physician monitors your response every 4–6 weeks and adjusts as your needs change.

    5

Individual results vary. Benefits reflect what Zepym Health members commonly report to their physician at check-ins; they are not the results of a clinical trial.

How you use it

This is the starting dose the pharmacy prints on the label. Your physician sets yours and adjusts it with you.

How
Injected under the skin
Dose
20 units (0.4 mg)
How often
5 days a week
When
In the morning
Each shipment
1 vial
Pharmacy label
Inject 20 units (0.4 mg) subcutaneously in the morning 5 days per week for 4 weeks. Discard any remaining medication.

A sample week

  1. M
  2. T
  3. W
  4. T
  5. F
  6. S
  7. S

5 days a week

Strengths the pharmacy carries

  • 4 mg/mL
  • 2 mg/mL

The science of mitochondrial peptides

SS-31 improves mitochondrial function and ATP synthesis in cell and animal models of energy depletion, cardiac stress, and muscle damage.

Human clinical trials are few and limited to mitochondrial disease. Off-label use for general fatigue or recovery is based on mechanism and anecdote, not rigorous trials. Your physician explains this gap and monitors energy and muscle function at check-ins.

Learn more

Important safety information and common side effects

SS-31 is prescribed off-label based on preclinical support and early clinical experience. It is generally well tolerated; common mild effects are injection-site reactions, headache, or temporary energy fluctuations in the first week as mitochondrial function shifts. SS-31 is not prescribed during pregnancy or breastfeeding, or with severe cardiac arrhythmias without careful discussion—it works on mitochondria in all tissues, including heart. Tell your physician about every medication, supplement, and any history of heart disease or arrhythmias. Stop and seek care for severe headache, chest pain, palpitations, or signs of allergic reaction.

Every plan includes

  • Personalized, physician-guided plan
  • Monthly, 3-month and 6-month plans
  • Dispensed by a US-licensed compounding pharmacy
  • Unlimited protocol adjustments and messaging
  • Ongoing support and check-ins
  • Pause or cancel anytime
  • Reviewed by our in-house physicians
Get Started

How it works

  1. 1.Connect with a physician

    Answer a few questions online and a US-licensed physician reviews your health, history and goals to make sure treatment is right for you. 100% online. No in-person visit required.

  2. 2.Get your discreet shipment

    If approved, your treatment is compounded by a US-licensed, LegitScript-certified pharmacy, inspected for quality, and shipped discreetly to your door.

  3. 3.Receive continuous support

    Start with one goal, then keep building over time. Unlimited physician messaging, easy refills and dose adjustments, all from the Zepym Health app.

SS-31 educational content reviewed by our physician

Scott Nass, MDDoctor of Medicine, board-certified in Family Medicine

Charles R. Drew University and David Geffen School of Medicine at UCLA. Family Medicine residency at Ventura County Medical Center.

Frequently asked questions

How do I use SS-31?

Injected under the skin, 5 days a week, in the morning. The starting prescription is 20 units (0.4 mg) each time. Your physician sets your own dose and it is printed on your label.

What strengths does SS-31 come in?

The pharmacy carries 2: 2 mg/mL, 4 mg/mL. Your physician chooses which one you get.

How much arrives in each shipment?

1 vial at the starting strength, shipped to your door from a licensed US pharmacy.

Who might benefit from SS-31?

People with chronic fatigue, muscle weakness, or poor recovery from exercise, whose fatigue appears linked to mitochondrial or energy metabolism issues. Your physician reviews your history and may order bloodwork to assess cellular energy markers before starting.

How long until I feel more energy?

Some people notice improved energy within 1–2 weeks; others take 4–6 weeks. Consistent dosing (3–5 injections per week) is essential. Keep an energy log tracking tiredness, exercise capacity, and recovery. Small, subtle improvements often precede major shifts.

Can I use SS-31 with other medications?

Tell your physician about all medications, especially cardiac or arrhythmia drugs. SS-31 works at the mitochondrial level, so heart medications need careful review. Most combinations are compatible, but timing or dose adjustments may be needed.

What if I don't notice a change?

Mitochondrial function can take 6–8 weeks to measurably shift. Keep detailed logs of energy, exercise capacity, and recovery. If no improvement after 8–10 weeks, your physician may adjust the dose or explore whether SS-31 is the right fit for you.

How does SS-31 affect exercise?

SS-31 supports mitochondrial ATP production, which should improve endurance and recovery. You may notice you can work harder before fatigue sets in, or that muscle soreness after exercise eases sooner. Pair SS-31 with consistent exercise for best results.

Energy from within.

  • NAD+

    Supports cellular energy, focus and healthy aging by restoring the NAD+ levels that decline with age, for a fraction of the cost of IV infusions.

    Injection

    from $179/mo

  • Glutathione Injection

    A master antioxidant that supports your body's natural detox pathways, skin clarity and recovery. Prescribed and dosed by a licensed clinician.

    Injection

    from $159/mo

  • Epithalon

    A peptide studied for cellular aging and sleep regulation, used in longevity protocols. Prescribed and dosed by a licensed physician.

    Injection

    from $209/mo

  • Glutathione Capsules

    Oral Glutathione for antioxidant support, cellular health, and longevity. A master antioxidant that supports detoxification and cellular function.

    Capsule

    from $89/mo

Ready to start?

Answer a few questions and take your first step to living well.

Get Started

The above statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Prescription products require an online evaluation with a licensed medical professional who will determine if a prescription is appropriate. Individual results vary.

Sources

  1. 1

    SS-31 (elamipretida): a mitochondrial-targeting peptide for cardiac and mitochondrial disease.

    Circulation, 2016
  2. 2

    Cardiolipin and the inner mitochondrial membrane: mechanisms of cardiolipin-induced cellular stress.

    Biochim Biophys Acta, 2014

from $209/mo

Get Started