
Research Use Only. Not for human consumption, medical use, diagnosis, or treatment. By purchasing, you agree to laboratory use guidelines.
Buy SS-31 UK | SS-31 Peptide Pen 20mg
SS-31 Peptide Pen 20mg (Elamipretide) is a premium mitochondria-targeted research peptide supplied in a ready-to-use pre-filled Genesis multi-dose research pen. Tested to ≥99% purity by independent laboratory analytics. Supplied strictly for in vitro and in vivo laboratory research applications studying cellular energy pathways and mitochondrial cardiolipin protection. Delivered in sealed format with 12 disposable needles. All products are strictly for research purposes only. Not for human consumption, medical use, diagnosis, or treatment.
SS-31 (Elamipretide) 20mg | Ultimate Mitochondrial Repair Peptide
SS-31 (Elamipretide / Bendavia) is a breakthrough aromatic-cationic tetrapeptide engineered to restore mitochondrial cristae architecture, stabilize cardiolipin, and optimize cellular ATP energy production. Delivered in a pre-filled, precision multi-dose Genesis research pen.
Comparing suppliers, pricing, and UK legality first? See our buy SS-31 UK guide page.
Primary Research Focus Areas
Longevity & Biohacking TargetIn longevity research circles and biohacking communities (such as r/peptides & r/Biohackers), SS-31 is evaluated as the foundational cellular repair compound for deep organelle restoration:
Chronic Fatigue & Post-Viral Recovery
Investigated for addressing severe cellular exhaustion and post-viral energy deficits by resolving underlying inner mitochondrial membrane dysfunction.
Anti-Aging & Cellular Longevity
Evaluated for reversing age-related mitochondrial degradation, reducing damaging reactive oxygen species (ROS), and restoring baseline ATP energy synthesis.
Brain Fog & Synaptic Health
Targeted in cognitive health models to support synaptic plasticity, mental clarity, and neuronal energy preservation under chronic stress conditions.
Organ Protection & Ischemia
Highlighted in clinical research literature for protecting renal tubular cells, cardiac tissue, and neural pathways against oxidative ischemic injury.
Targeted Mitochondrial Signalling Mechanism
Unlike traditional general antioxidants, SS-31 (also known as Elamipretide or Bendavia) is an aromatic-cationic tetrapeptide (D-Arg-Dmt-Lys-Phe-NH2) that selectively concentrates within the inner mitochondrial membrane (IMM).
Cardiolipin Binding & Protection
SS-31 selectively binds to cardiolipin, a crucial phospholipid unique to the inner mitochondrial membrane. This interaction helps stabilize mitochondrial cristae structure and prevents oxidative damage to lipid membranes.
ATP Production & ROS Reduction
By restoring optimal electron transport chain flow between complex I, III, and cytochrome c, SS-31 optimizes ATP energy synthesis while dramatically curbing mitochondrial reactive oxygen species (ROS) formation.
Key Laboratory Research Applications
Researchers utilize SS-31 in controlled cell culture and animal models investigating cardiac ischemia-reperfusion, renal tubular protection, neurodegenerative oxidative stress pathways, and age-related mitochondrial dysfunction.
SS-31 Pen Click Conversion & Dose Guide
The SS-31 20mg multi-dose pen features a precision dial mechanism for effortless dose calibration without liquid measuring or syringe handling:

★ 100mcg Dose Increase = 3 Clicks | Daily Laboratory Administration
What's In The Box
Each order includes 1x pre-filled Genesis multi-dose injection pen (20mg SS-31 in 3ml), 12x disposable needles, and an instruction guide.
Mitochondrial Reset Protocol: Repair First, Boost Second
Biohackers and longevity researchers recommend repairing damaged cardiolipin with SS-31 prior to initiating biogenesis signaling with MOTS-c:

Often Purchased Together | Synergistic Stacks
Mitochondrial researchers frequently pair SS-31 with complementary cellular energy and tissue repair compounds for maximum research synergy:
MOTS-C KLIK PEN 40MG
Use SS-31 first (10–20 days) to repair mitochondrial membranes & cardiolipin (“Fix the engines”), then MOTS-C to activate AMPK, boost ATP, and stimulate biogenesis (“Build new engines”).
KLOW PEN (GHK-CU 50MG STACK)
Combines GHK-Cu 50mg, KPV 10mg, BPC-157 10mg, and TB-500 10mg in one Genesis pen for broad-spectrum collagen synthesis, tissue recovery, and systemic anti-inflammatory synergy.
Latest SS-31 & Mitochondrial Research Articles
View All News →
The Anti-Aging Peptide Paradox: Dr. Alex Tatem Breakdown on SS-31, Mouse Study Reversals & FDA Approval Story
Dr. Alex Tatem’s deep-dive into SS-31 (Elamipretide): The Szeto-Schiller discovery, the 8-day mouse aging reversal study, why human Phase 3 trials failed, and how FORZINITY won FDA approval.

SS-31 (Elamipretide) Protocol Guide: Dr. Quinn Stillson MD Video Breakdown, Dosing, Cycles & Benefits
Dr. Quinn Stillson MD breaks down SS-31 (Elamipretide) mitochondrial peptide: benefits, cardiolipin mechanism, FDA approval, dosing, frequency, and cycle protocols. Plus join our official MyReta WhatsApp community channel.

Comprehensive Pharmacological, Biophysical, and Clinical Profile of Elamipretide (SS-31): Mechanisms of Action, Interactome Dynamics, and Therapeutic Applications in Mitochondrial Disorders
Comprehensive pharmacological and clinical profile of Elamipretide (SS-31 / Bendavia). Covers molecular structure, cardiolipin membrane electrostatics, respirasome interactome restructuring, FDA accelerated approval for Barth syndrome (FORZINITY™), ReCLAIM-2 dry AMD trials, and the SS-31 + MOTS-c Mitochondrial Reset Protocol.
Triple Tested
HPLC & MS verified for consistent potency thresholds.
Priority Post
Discreet Next Day Delivery on all research orders.
Analytical Verification & COA Reports
All batches are independently verified for purity and sterility by Janoshik Analytical and TrustPointe Analytics. View published lab reports below:
Frequently Asked Questions — SS-31 Peptide Pen 20mg
What is SS-31 Peptide Pen 20mg (Elamipretide)?
SS-31 (also known as Elamipretide or Bendavia) is a specialized mitochondria-targeted tetrapeptide (D-Arg-Dmt-Lys-Phe-NH2). It is supplied as a 20mg pre-filled, ready-to-use Genesis multi-dose research pen engineered for targeted cellular energy and cristae protection research.
How does SS-31 differ from generic antioxidants or caffeine stimulants?
Unlike general systemic antioxidants or central nervous system stimulants, SS-31 selectively concentrates within the inner mitochondrial membrane (IMM). It binds directly to cardiolipin to stabilize mitochondrial cristae structure and restore electron transport chain flow (Complex I-III), optimizing ATP cellular energy production without neural jitters or adrenal crashes.
Why is SS-31 paired with MOTS-c in the 'Mitochondrial Reset Protocol'?
In biohacking and longevity research, SS-31 is used as Step 1 (a 10 to 20-day primer cycle) to repair existing damaged mitochondrial membranes and stabilize cardiolipin ('fixing the engines'). Following SS-31 with MOTS-c (Step 2) activates AMPK and stimulates new mitochondrial biogenesis ('building new engines'). Researchers emphasize that building new mitochondria while existing ones are damaged is far less efficient.
Why is SS-31 synthesis significantly more expensive than standard peptides?
SS-31 is an aromatic-cationic tetrapeptide incorporating modified structural amino acids (specifically 2',6'-dimethyltyrosine, or Dmt). Synthesizing and purifying this compound requires complex solid-phase peptide synthesis (SPPS) and rigorous HPLC testing to achieve ≥99% purity, making raw manufacturing costs considerably higher than simple linear peptides.
Why do injection site reactions (redness/stinging) occur during administration?
Clinical trial data (NIH/PubMed) show over 50% of subjects experience mild localized injection site reactions, including transient redness, itching, warmth, or swelling. This is a known localized vascular/histaminic response to the peptide molecule itself rather than a product defect. Scientific protocols recommend rotating subcutaneous administration sites across abdominal fat regions and allowing the solution to reach room temperature before use.
What research dosages are evaluated for SS-31?
Human clinical trials for genetic mitochondrial diseases and renal ischemia evaluated high daily doses (10mg to 40mg daily via IV/SubQ). In grey-market exploratory research, researchers often utilize 1mg to 5mg/day micro-dosing or run short 10–20 day 20mg primer cycles, balancing cost considerations with cardiolipin binding efficiency.
Why isn't there an immediate sudden surge in physical energy after administration?
SS-31 works at the organelle level inside cellular membranes rather than acting as a neurotransmitter stimulant. Noticeable laboratory markers focus on sustained baseline physical stamina, accelerated recovery from exercise/fatigue, and improved mental clarity over days rather than an instant caffeine-like rush.
What primary applications is SS-31 investigated for?
Key research domains include Chronic Fatigue & Post-Viral/Long COVID recovery (addressing mitochondrial energy failure), Anti-Aging & Longevity (reversing age-related cristae degradation and curbing ROS), Cognitive Plasticity (restoring neural synaptic energy), and Multi-Organ Protection (cardiac, renal, and neural ischemia models).
Do I need to reconstitute SS-31 Peptide Pen 20mg?
No. The Genesis SS-31 pen arrives fully pre-filled and pre-formulated in a multi-dose 3ml cartridge with 12 disposable research needles. No manual powder mixing or bacteriostatic water is required.
What is the click conversion for the SS-31 20mg pen dial?
The precision dial mechanism is calibrated as follows: 4 Clicks = 250mcg (0.25mg), 8 Clicks = 500mcg (0.50mg), 12 Clicks = 750mcg (0.75mg), and 16 Clicks = 1.0mg (1000mcg). Every 3 clicks represents a 100mcg dose increment.
How should SS-31 Peptide Pen 20mg be stored?
Store refrigerated at 2°C to 8°C, protected from direct sunlight. Do not freeze.
Is SS-31 Peptide Pen 20mg intended for human therapeutic use?
No. SS-31 Peptide Pen 20mg is strictly for laboratory research, in vitro, and scientific trial purposes only. It is not approved for human consumption, self-administration, or medical diagnosis.
