What MOTS-c is and why researchers study it
MOTS-c (Mitochondrial Open Reading frame of the Twelve S rRNA-c) was identified in 2015 as one of the first peptides translated from a small open reading frame inside the mitochondrial genome. Published preclinical work has linked MOTS-c administration to improved insulin sensitivity, AMPK pathway activation, enhanced metabolic flexibility and resistance to age-related metabolic decline in rodent models.
Because the molecule sits at the interface of mitochondrial biology, longevity research and metabolic-disease modelling, MOTS-c has become a staple in laboratory panels focused on cellular energetics, mitokine signalling and exercise-mimetic pathways.
How Regena tests every MOTS-c batch
Each MOTS-c production lot is verified by an independent European peptide laboratory before any vial is released. The COA reports HPLC main-peak purity (target ≥99.0%), confirmed molecular weight by mass spectrometry, peptide content by nitrogen analysis, and a moisture figure for the lyophilised cake.
Janoshik Analytical is the default verification partner. Per-batch PDFs are published on the lab reports page and tied to the batch number printed on every vial cap.
Storage, reconstitution and laboratory handling
Lyophilised MOTS-c is dispatched as a sterile white powder under inert atmosphere. Hold the unopened vial at 2–8 °C; transfer to −20 °C if the kit will not be reconstituted within 8–12 weeks. Reconstitute with bacteriostatic water for a 28-day in-use stability window under refrigeration.
Most laboratories use 5–10 mg/ml stock concentrations and aliquot before any freeze. Avoid vortex aggression — swirl the vial until the cake fully dissolves. MOTS-c is generally well-behaved during reconstitution; cloudy or coloured solutions are a red flag for handling error or undisclosed impurities.
Buying MOTS-c in Spain and across Europe
Regena dispatches MOTS-c from the Costa del Sol with same- or next-day Andalucía delivery and 24–48 hour nationwide Spain coverage via tracked courier. Cross-border EU delivery uses DHL Express to Germany, France, Italy, Portugal, the Netherlands, Belgium and the Nordics with end-to-end tracking.
Every EU shipment includes the matching batch COA and a research-use customs declaration. The consultations team confirms import status for less common destinations before an order is placed.
Buying MOTS-c in the UK
UK research clients order from the same catalogue. Tracked dispatch from the European hub typically arrives in 2–4 working days; DHL Express upgrades are available for tighter timelines. VAT and customs handling are quoted transparently at checkout.
Every UK shipment carries the same independent Janoshik COA used for EU orders. Additional documentation (MSDS, CoO, CoC) is supplied on request before dispatch.
Buying MOTS-c in the United States
US researchers receive MOTS-c via discreet international dispatch in temperature-buffered packaging. Transit is fully tracked end-to-end, and the COA supplied with each shipment is identical to the document EU laboratories receive.
US buyers should confirm institutional research-purchasing policy before ordering. Regena material is sold strictly for research use only.
MOTS-c vs AOD-9604 vs SS-31
Researchers comparing mitochondrial and metabolic peptides often place MOTS-c alongside SS-31 (Elamipretide) for inner-membrane bioenergetic work and AOD-9604 for adipose-tissue lipolysis modelling. MOTS-c sits in a distinct mechanistic lane via AICAR-like AMPK activation; SS-31 modulates cardiolipin interaction at the inner mitochondrial membrane; AOD-9604 acts on β3-adrenergic fat-mobilisation pathways.
Stocking all three from the same supplier keeps batch documentation and packaging consistent across a comparative panel.
What to demand from any MOTS-c supplier
An honest MOTS-c supplier publishes a per-batch third-party COA, names the testing laboratory and prints the batch number on the vial. Reject suppliers showing a single static COA across all production runs or refusing to identify their analytical partner — those are reliable indicators of unverified material.
Regena's consultations team is happy to walk a new buyer through the COA, the reconstitution maths and the storage plan before any order is dispatched.
Frequently asked questions
What is MOTS-c?+
A 16-amino-acid mitochondrial-derived peptide encoded inside the 12S rRNA region of mitochondrial DNA, studied for metabolic and longevity research applications.
Is MOTS-c safe for human use?+
Regena MOTS-c is supplied strictly for in-vitro and preclinical research. It is not approved for human use in any jurisdiction.
What HPLC purity should I expect?+
≥99.0% main peak with mass-spectrometry identity confirmation on the per-batch COA.
How is MOTS-c reconstituted?+
With bacteriostatic water for a 28-day in-use stability window under refrigeration. Most labs use 5–10 mg/ml stock concentrations.
Do you ship MOTS-c to the UK?+
Yes — 2–4 day tracked dispatch with VAT and import handling included transparently at checkout.
Do you ship MOTS-c to the USA?+
Yes, with discreet tracked international dispatch in temperature-buffered packaging.
How is MOTS-c different from SS-31?+
MOTS-c is encoded inside mitochondrial DNA and activates AMPK-related pathways; SS-31 (Elamipretide) modulates cardiolipin at the inner mitochondrial membrane.
Who tests Regena's MOTS-c batches?+
Janoshik Analytical or an equivalent independent European laboratory. Reports are downloadable per batch.
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Continue your research
Browse the full peptide catalogue
HPLC-verified vials with batch COAs
Lab reports & certificates of analysis
Independent third-party purity data
Book a research consultation
Free 20-minute call with the Regena team
Costa del Sol delivery
Same-week dispatch across Marbella & Málaga
MOTS-c product page
How to read a peptide COA
Laboratory peptides reference
Storage & reconstitution guide
Reconstitution best practice