# mescreen > mescreen is the world's first at-home mitochondrial efficiency test. Originally developed for NASA's Twin Study, it measures how well your cells produce energy (mitochondrial function) from a simple finger-prick blood sample collected at home, with results in 3-4 weeks. mescreen helps people find the root cause of fatigue, optimize energy and recovery, and track cellular health over time. The test is research-use-only and has not been reviewed by the FDA; results can be reviewed with a healthcare provider. ## Key facts - Product: mescreen Mitochondrial Function Test with Healthcare Provider Consult - Price: $699 USD (a $100 discount is available for first-time orders) - Sample: at-home finger-prick blood sample, collected in under 10 minutes - Turnaround: results in 3-4 weeks, delivered in a secure online portal - Science: methodology originally developed for NASA's Twin Study - Regulatory status: research-use-only; not FDA reviewed; share results with your provider ## How it works 1. Order your kit online — the at-home collection kit ships to you. 2. Collect a small finger-prick blood sample at home (under 10 minutes). 3. Mail the sample to the lab using the prepaid packaging. 4. Receive your mitochondrial efficiency results in 3-4 weeks via the mescreen portal. 5. Review your results and next steps with a healthcare provider. ## Primary pages - Home: https://mescreen.com/ - How it works: https://mescreen.com/pages/how-it-works - FAQ: https://mescreen.com/pages/faq - Example report: https://mescreen.com/pages/example-report - Meet the scientists: https://mescreen.com/pages/meet-the-scientists - For healthcare practitioners: https://mescreen.com/pages/healthcare-practitioners - Contact: https://mescreen.com/pages/contact-us ## Common questions - What is mescreen? The world's first at-home mitochondrial efficiency test, developed from NASA's Twin Study. - What does it measure? Your mitochondrial efficiency — how well your cells produce energy. - How much does it cost? $699 (with a $100 first-order discount). - How long for results? 3-4 weeks after the lab receives your sample. - Is it FDA approved? No — it is research-use-only; results can be shared with your healthcare provider. - Is collection painful? No — it is a simple finger-prick taking under 10 minutes.