Preventative Health Screening UK
What a real private health baseline should include — beyond the basics your GP offers — and where mitochondrial testing fits in.
Read more →100 trillion mitochondria, one at-home mitochondrial function test to measure how well yours produce energy. MeScreen combines 11 mitochondrial markers, finger-prick collection and a secure UK report in 3-4 weeks.

Why it matters
Your body holds roughly 100 trillion mitochondria — the structures inside your cells that convert nutrients and oxygen into usable cellular energy. MeScreen gives UK customers a practical way to track mitochondrial health signals at home, while keeping the language clear: this is a wellness assessment, not a rare-disease genetic diagnostic. NCBI Bookshelf explains mitochondria's role in cellular energy production.
You sleep enough but wake drained. Afternoon crashes can have many causes, but cellular energy testing helps you see whether mitochondrial markers deserve attention.
Workouts take days to recover from. Performance plateaus despite training harder. A mitochondrial health test at home can give you a clearer baseline before you change training, sleep, diet or recovery plans.
Mitochondrial dysfunction is recognised in the updated hallmarks of ageing literature. Understanding your cellular function is the first step to making evidence-led changes. See the PubMed record for the updated hallmarks of ageing review.
How It Works
A professional-grade cellular energy assessment from your door to your dashboard: order, collect, post, then review your secure UK report.
Delivered to your door anywhere in the UK. Everything you need is in the box.
A simple dried blood spot collection. Just a few drops — takes 90 seconds.
Your sample is processed at our accredited partner laboratory. 11 mitochondrial markers measured.
Detailed report in your secure portal in 3–4 weeks, with actionable insights.
What You Learn
MeScreen looks across ATP production, oxidative stress, reserve capacity and efficiency markers so you can discuss cellular health screening with better evidence.
See It In Action
The Science
MeScreen's technology was originally developed from NASA Twin Study research into astronaut biology and cellular health in space. We've translated that professional-grade analysis into an at-home UK mitochondrial function test kit. Read NASA's overview of the Twins Study.
Our team brings over 20 years of laboratory experience, translating complex cellular data into actionable insights you can understand.
Technology developed from NASA Twin Study researchBuilt by scientists, for people who take health seriously.



Understand the biology, the markers and the evidence. Start with these guides, including our mitochondrial health tracking guide, cellular health testing explainer and chronic fatigue and mitochondria article.
What a real private health baseline should include — beyond the basics your GP offers — and where mitochondrial testing fits in.
Read more →A complete guide for anyone experiencing fatigue, brain fog, or slow recovery who wants to know if the problem is cellular.
Read more →Which blood markers actually track biological age — and how to separate useful longevity testing from expensive guesswork.
Read more →The markers behind energy, inflammation, cardiovascular risk, and metabolic resilience — explained without the jargon.
Read more →How your cells actually make energy (ATP), what happens when production drops, and why it matters for how you feel daily.
Read more →The full picture: symptoms, mechanisms, testing, and interventions. Start here if you want to understand mitochondria properly.
Read more →Practical, evidence-based actions — exercise, sleep, diet, glucose control — that support healthier mitochondria.
Read more →Pricing
MeScreen Mitochondrial Function Assessment
Or 4 interest-free payments of £149.75 with Klarna
Frequently Asked Questions
Order the UK mitochondria test kit designed for practical mitochondrial function insight, secure results and evidence-led next steps.
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