Regular testing helps you understand how your Nitric Oxide levels fluctuate throughout the day and respond to changes in diet, exercise, and supplementation.
Clinically Validated
NO Test Strips
Real-time support for your nitric oxide levels.
Rated 4.9 out of 5 stars
35 Reviews
Test don't guess. Quickly check your Nitric Oxide levels with Berkeley Life's patented, non-invasive saliva test strips in 15 seconds. Perfect for daily use, along with Our Nitric Oxide supplements. The test strips help establish a baseline, track levels before workouts, and monitor after nitrate-rich meals or our Nitric Oxide Supplements. Test take 2 supplements and watch your strip pink up!
Place the test strip on your tongue with the “saliva here” side facing down and hold for 5 seconds. Fold the strip in half, gently pressing both sides together for 10 seconds. Unfold and compare the color to the Nitric Oxide Scale included on the package.
For best results, test first thing in the morning, before and after you take your Nitric Oxide Support supplements, or before physical activity to better understand your Nitric Oxide levels over time.
✔ Measures Nitric Oxide status in seconds through a simple saliva test
✔ Helps establish and track your personal Nitric Oxide baseline
✔ Monitor changes before workouts, meals, or supplementation
✔ Patented, non-invasive testing with instant results
Patented Nitric Oxide Test Technology
Uses a clinically validated colorimetric reaction to measure salivary nitrite levels, a reliable marker associated with Nitric Oxide activity in the body. The resulting color change provides immediate feedback on your current Nitric Oxide status.
Saliva-Based Measurement System
Designed to work with naturally occurring saliva, delivering fast, convenient, and non-invasive Nitric Oxide monitoring without the need for blood tests or specialized equipment.
Nitric Oxide Test Strips are ideal for anyone who wants to understand and monitor their Nitric Oxide levels. Whether you're focused on circulation, heart health, energy, exercise performance, or healthy aging, these strips provide immediate insight into your body's Nitric Oxide status.Especially useful for individuals using our Nitric Oxide supplements, following a nitrate-rich diet, or looking to track the impact of lifestyle habits on their cardiovascular wellness. Regular testing can help establish a baseline and monitor progress over time.
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Choose Your Format
Pack vs Tube
Same clinically validated strip, two formats - pick what fits how you test.
How to Use
Berkeley Life
Test Strips
Simple steps. Quick results.
01COLLECT
Place the test strip on your tongue in your saliva for 5 seconds
Saliva reacts naturally with the test pad.
02activate
Fold the strip over to touch the pad on the other side and hold for 10 seconds
The color will change based on your Nitric Oxide levels.
03compare
Unfold and compare your colour with the guide on the tube or envelope to see your level
Use the guide on the package to see your level.
04track
Track over time
Test regularly to see how diet, exercise, and supplements improve your levels.
One Test.Total Visibilty.
Get instant insight into your Nitric Oxide levels with a patented saliva test designed to help you measure, track, and optimize your results over time.
Simply place the strip on your tongue, activate it, and compare the color to the provided scale for immediate feedback.
Test before and after you take your Nitric Oxide Support to better understand your body's response and identify habits that support healthy Nitric Oxide production.
Nitric Oxide plays an important role in circulation and oxygen delivery. Testing before activity can help you better understand your readiness and response over time.
The Berkeley Life test strips use a saliva-based measurement method designed to provide a convenient and reliable indicator of Nitric Oxide status without blood draws or specialized equipment.
QUALITY & TRUST
A Higher Standard
For Test Strips
Clinically Validated
Independently verified via blood testing — not a self-reported marketing claim.
Made in Germany
Manufactured in a FDA approved facility in Germany to the highest quality and standards
Backed by Independent Research
Used in IRB approved clinical studies, independent of Berkeley Life's own product testing.
Are Your Nitric Oxide Levels
Holding You Back?
NO naturally declines with age — by 50% by age 40, and continues dropping every decade. This invisible drop affects energy, heart health, and how every organ in your body performs.
Reviews
Total 5 star reviews: 32 Total 4 star reviews: 2 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
97%would recommend this product
Slide 1 selected
35 reviews
- MBMichael B.Verified BuyerRated 5 out of 5 starsYesterdayTO
Seems to work for me, and helps BP a little bit.
BLBerkeley Life28 seconds agoThank you so much for sharing your experience with the NO Test Strips, Michael! It's wonderful that you've found them to be a helpful tool in monitoring your health. We truly appreciate you taking the time to leave your feedback!
- LILloyd I.Verified BuyerRated 4 out of 5 stars6 days agoSingle straight male
I think they are pretty good.They remind me greatly of COVID test strips.Ive only tried a couple of them,reading said I was very low.
I'm interested now more in beet root supplement to augment circulation over all and help libido
Thank you very much
Best Regards.Benny Ingram
BLBerkeley Life5 days agoThank you so much for sharing your experience with the NO Test Strips, Benny! We're glad you find them pretty good and that they're giving you a clear reading of your nitric oxide levels. It's wonderful that this information has sparked your interest in exploring additional ways to support your circulation and overall wellness. We truly appreciate your feedback and thank you for being part of the Berkeley Life community!
- BGBen G.Verified BuyerRated 5 out of 5 stars1 month agoNice monitoring tool
Great tool to monitor if the capsules are working. Easy to use and give a realtime view of effectiveness.
BLBerkeley Life1 month agoThank you so much for sharing your fantastic experience with the NO Test Strips! We're absolutely thrilled to hear that you find them to be such a great monitoring tool and that they're giving you that real-time view of how effectively your capsules are working. It's wonderful that you're finding them easy to use — we designed them with simplicity and accuracy in mind so you can stay on top of your nitric oxide levels effortlessly. Your proactive approach to monitoring your health is truly commendable!
- JBJames B.Verified BuyerRated 5 out of 5 stars1 month agoAnother great product
These strips are great for measuring your levels and always accurate
BLBerkeley Life1 month agoThank you so much for sharing your wonderful experience with the NO Test Strips, James! We're absolutely thrilled to hear that you find them great for measuring your levels and that they're consistently accurate for you. It's fantastic that you're taking such a proactive approach to monitoring your nitric oxide levels and staying on top of your health journey.
- BBBelinda B.Verified BuyerRated 5 out of 5 stars1 month agoBlood Pressure
I am very please to see that the Nitric Oxide has help reduce my blood pressure. It will be something I'll be taking for years to come.
BLBerkeley Life1 month agoThank you so much for sharing your wonderful experience with NO Test Strips, Belinda! We're absolutely thrilled to hear that monitoring your nitric oxide levels has helped you see such positive results with your blood pressure. It's incredible when customers can track their progress and witness firsthand how nitric oxide support is making a meaningful difference in their health!
Your commitment to making this part of your long-term wellness routine is truly inspiring. The fact that you're planning to continue using the test strips for years to come shows what a valuable tool they've become for managing your cardiovascular health. We're so honored to be part of your health journey and look forward to supporting your wellness goals for many years ahead!