4.8 Stars (192 Reviews)
Measure Your Inflammation with the COR One™
Rated “Excellent”
on
FDA-Registered
FSA & HSA Eligible
Medical-Grade
Description
The COR One™ is the first at-home medical device to track chronic, acute, and low-grade inflammation with just a single drop of blood.
Inside its compact, lightweight design by Apple Watch architect Bob Messerschmidt is a powerful tool that reveals insights into your body’s unique health patterns.
Benefits
Knowing is half the battle, and COR One™ enables you to see which lifestyle changes really impact reducing inflammation—directly in your home.
Inflammation underpins many chronic conditions, from heart health to metabolism, but generic solutions often miss the mark. COR One™ gives you personalized insights by measuring your unique inflammatory response, showing which actions—diet, supplements, lifestyle, or fitness—reduce inflammation for you.
COR One™ allows you to build a data-driven routine tailored to your body, right from home.
What’s Included
COR One™ Device
Your personal inflammation tracker - connects to Wi-Fi to analyze your results quickly and securely. The device is shipped to you with your first order, keep it as long as you have an active subscription.
COR Mini Test Tubes
Each test tube provides accurate, safe testing at a fraction of traditional lab costs. Test up to 5 times a month.
Sample Station
The Sample Station makes blood collection simple and painless. Compact and portable, it’s easy to use anywhere.
USB-C Cable & Charger
Power up through the included USB-C charger.
Family Mode
Track multiple profiles on one device. Perfect for managing your whole family's health data separately and securely.
COR One Subscription comes with the COR One device, free to use during your active subscription, as well as all the above accessories, all protected by our lifetime warranty.
If COR is not for you, you can pause or cancel and send your device back.
Shipping
Always free shipping in the US. We’re committed to making your experience seamless, so your COR One™ device will be carefully packaged and shipped directly to your door. Once your order is placed, you’ll receive a confirmation email with tracking information so you can monitor your delivery every step of the way. Expect your device to arrive within 3-5 business days.
WARRANTY
Your satisfaction and peace of mind are our top priorities. COR One™ comes with a comprehensive warranty to protect against any manufacturing defects. If you experience any issues with your device, simply reach out to our customer support team, and we’ll ensure it’s resolved promptly. For more information on what’s covered under our warranty and how to make a claim, please refer to our warranty policy or contact us directly at hi@corhealth.com.
“I love my device. I've been using it for about 6 months and it's incredibly helpful to see how different foods, supplements, and dietary restrictions affect my personal inflammation levels. The best part is the tests are inexpensive and you test at home and get results in about 30 minutes.”
AS SEEN IN
Inflammation tracking in three simple steps.
The COR One™ takes just 30 minutes to get you your results.
Quick Blood Sample
One tiny drop from a gentle finger prick - as simple as a glucose test.
Let COR One™ Analyze
Your device processes the sample and sends the results straight to your phone.
See What Works
Watch how your diet and lifestyle choices affect your inflammation levels over time, with personalized insights to guide you.
Get clear, actionable data about your inflammation.
Get Mine Now
Rated 4.8 by 1000+ Happy Users
Rated “Excellent” on
Tracking with purpose
COR One™ goes beyond lab tests, empowering you to actively improve your health and support a longer life.
Easily track your progress, receive personalized guidance, and understand what truly impacts your inflammation—helping you make meaningful changes over time.
This is a fantastic tool for tracking your inflammation. You can measure it at home instead of going to a clinic and waiting a week for the results. You can measure it weekly, and for that week you do one experiment, such as adding an anti-inflammatory supplement to your daily routine. After a week you can see a result. Did it improve your inflammation or not?
Real Results, Real Impact
Hear from those who have taken control of their health and wellbeing with COR One.
GOAL: DISEASE MANAGEMENT
Emily’s RA flare-ups affected her quality of life. She began using COR One™ to track inflammation and noticed spikes after stress or certain foods.
Armed with this data, Emily worked with her doctor to adjust her treatment and lifestyle. With COR One™, she experienced fewer flare-ups and felt more empowered in managing her health.
GOAL: INCREASED ENERGY
Michael had always struggled with low energy throughout the day. After learning about the link between inflammation and energy, he decided to try COR One™.
By tracking his inflammation and reviewing his habits, Michael identified processed foods and poor sleep as triggers. With this knowledge, he focused on whole foods, better sleep hygiene, and stress management. COR One™ guided him to lower inflammation and regain his energy, helping him feel revitalized and motivated again.
GOAL: INCREASED LIFESPAN
David had always been health-conscious, but as he entered his 50s, longevity became a top priority. After researching the impact of inflammation on aging and chronic disease, he decided to try COR One™. By tracking his inflammation levels, David gained invaluable insights into how his diet, sleep, and exercise routines influenced this key marker of aging.
He discovered that stress and poor sleep were significant triggers for inflammation. Equipped with this data, he prioritized stress management techniques and improved his sleep habits. COR One™ became his guide for optimizing his lifestyle, showing a steady reduction in his inflammation levels. David now feels empowered, taking action to live, healthier for longer, with clear data-baacked steps.
GOAL: HOLISTIC WELLNESS
Imani led a healthy lifestyle but felt persistent fatigue. Concerned about her long-term health, she used COR One™ to learn more about her body. Tracking her inflammation, she noticed that stress from her yoga studio and certain foods triggered spikes.
With these insights, Imani adopted new stress management techniques and adjusted her diet. COR One™ became her guide, helping her reduce fatigue and feel more in control of her wellness.
GOAL: PERSONALIZED NUTRITION & FOOD SENSITIVITY TRACKING
Mark struggled with bloating and fatigue after meals, despite trying various diets. He used COR One™ to track his inflammation alongside a food diary and quickly saw a pattern: dairy and gluten spiked his levels.
With this data, Mark removed those triggers and felt immediate improvements in his digestion and energy. COR One™ helped him personalize his diet for better health and sustained vitality.
Get clear, actionable data about your inflammation.
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Rated 4.8 by 1000+ Happy Users
Rated “Excellent” on
Inflammation tracking must become available to everyone, at a consumer price and in a test anywhere format.
Bob Messerschmidt
Founder
What's Included
Here’s what your complete COR One™kit includes.
The COR One™ Device
The COR One™captures and analyzes blood samples through high-quality imaging, connecting to WiFi to securely transmit data to COR’s servers for rapid analysis.
Smart Sample Station
The Sample Station makes blood collection simple and painless. Compact and portable, it’s easy to use anywhere
COR Mini Test Tubes
Each single use test tube provides accurate, safe testing at a fraction of traditional lab costs.
COR Dashboard
See your progress through the COR dashboard in our web app. No need to download, you get free access. You see your ESR Level, a Baseline ESR which is your best reading each month, your personal best ESR, and your COR ESR Age which tells you how you are doing relative to other COR users your age.
Get clear, actionable data about your inflammation.
Get Mine Now
Rated 4.8 by 1000+ Happy Users
Rated “Excellent” on
Affordable & Convenient
Get professional-grade results without the lab costs. The COR One™ fits in your hand, plugs into USB, and gives you answers in 30 minutes.
Quick, painless & easy
One tiny drop of blood is all you need – collected with the same gentle finger prick diabetics use for daily testing.
Get clear, actionable data about your inflammation.
Get Mine Now
Rated 4.8 by 1000+ Happy Users
Rated “Excellent” on
Medically accurate
COR One™ delivers precise inflammation tracking to support accurate health monitoring.
Hear from Thousands Who Have Already Benefited from COR One™
Rated 4.8 by 1000+ Happy Users
Excellent followup when I needed an update on my order and when I had questions.Thank you Bob!
I've had my COR One for about 6 months and it's been such a useful health tool! The fact that I can measure a clinically validated inflammation marker at home is great, but the best part is being able to tag readings with what I ate or did on that particular day and seeing what impact that has - so much better than blindly guessing what works for me and what doesn't.
Received the COR health device in January of this year. If you care or are concerned about your health, knowing whether you have any inflammation is a great place to start. The device is easy to set up and use with detailed written instructions and helpful videos.The lancets, included are great. The test tubes work perfectly as well.Just remember to prep your finger to get the best blood flow into the tube.But what has impressed me the most has been the customer support. Any issues I encountered or any questions I had were answered very quickly. And at times, with more detail than expected which was extremely helpful.Kudos to the entire COR Health team.
The COR ONE completely changed the way I think about inflammation. But MUCH more importantly, it has changed the way I respond to it by providing reliable, near-real-time feedback to dietary and lifestyle choices. This is literally a 'game changer'. My deepest gratitude to Bob and everyone at COR Health, Inc.
Very easy to use. App is straight forward and connection is also easy.
ESR is the dipstick of health
I believe you're in a very unique focus. The public health cost of undetected inflammation is enormous.
Get clear, actionable data about your inflammation.
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Frequently
asked questions
Have any questions? We have the answers.
Do other home devices exist to measure chronic inflammation?
The COR One™is the first and only completely at-home solution.
How is Sed Rate different from CRP?
CRP is one inflammatory marker. Sed Rate reflects many inflammatory proteins including CRP—making it better at capturing ongoing or chronic inflammation that CRP alone might miss.
What is a normal Sed Rate?
It depends on your age and sex, but in general: lower is better. Even within the “normal” range, lower values correlate with better long-term health outcomes.
Are COR One™ results as accurate as lab results?
The COR One™ is medically accurate and FDA registered.
Is the COR One™ available internationally?
COR is now available for purchase In the US and Canada, and by subscription in the US. As with all products the COR One™is subject to local regulation and requirements.
Can I share the results with my physician?
Yes. Your physician will understand your Erythrocyte Sedimentation Rate (ESR) results. Additionally, the COR dashboard allows you to print your results. You can then share them with medical professionals.
Is COR covered by insurance?
According to the Internal Revenue Service, Class 1 medical devices qualify for inclusion in Flexible Spending Accounts and Health Savings Accounts (FSA/HSA) under Internal Revenue Code Section 213(d). The COR One™and COR Mini Test Tubes are coded as health care products and they may be purchased with your FSA or HSA credit card. Please use the FLEX pay option at checkout.
Ready to take control of your health? Start tracking your inflammation with COR One™ today!
Reveal what’s hidden, personalize your care, and get the insights you need to improve your health.
COR™ One allows you to track your inflammation easily, get tailored guidance, and make meaningful changes for better health and longevity.
Rated 4.8 by 1000+ Happy Users
Rated “Excellent” on
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FDA-Registered
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Results In 30 Mins
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User-Friendly App
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30-Day Returns
FDA-Registered
Results In 30 Mins
User-Friendly App
30-Day Returns