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
39 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.
Medical Advisory board
Every Berkeley Life formula is reviewed by physicians and researchers who treat patients every day — so what you take is grounded in practice, not just marketing.
4
CLINICAL SPECIALISTS
+ 60
YEARS COMBINED PRACTICE
3
BESTSELLING AUTHORS
Women's health evolves at every life stage. Berkeley Life makes nitric oxide support a simple part of a daily routine focused on healthy aging.
Reviews
97%would recommend this product
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39 reviews
- DSDebbie S. T.Verified BuyerRated 5 out of 5 stars17 hours agoStrips show the progress
Glad we ordered the strips! It took us about a week to get to the threshold range and not only could we feel it, but we could see it on the strips!
BLBerkeley Life23 seconds agoThank you so much for sharing your wonderful experience with the NO Test Strips, Debbie! We're absolutely thrilled to hear that you were able to see your progress on the strips within about a week — there's something really special about being able to visually track those results alongside how you're feeling. It's fantastic that the strips are giving you that real-time confirmation of what you're experiencing! We're so glad you decided to order them, and we truly appreciate you taking the time to share your feedback!
- AEAnna E. M.Verified BuyerRated 5 out of 5 stars5 days agoIt showed Medium Pink after first dose!
It works!
- NWNancy W.Verified BuyerRated 5 out of 5 stars2 weeks agoNO Test Strips
I use the strips periodically to test my levels. I'm always at the lowest prior to taking the supplement. Afterwards, I'm on target! So great to know immediately that they are working!
BLBerkeley Life2 weeks agoThank you so much for sharing your experience with the NO Test Strips, Nancy! We're absolutely thrilled to hear that you're using them to monitor your levels and that you're seeing such clear results — it's wonderful that you can see the immediate difference before and after taking your supplement. Having that real-time confirmation that they're working is so empowering for your health journey. We truly appreciate you taking the time to leave your feedback!
- JHJohn H.Verified BuyerRated 5 out of 5 stars1 month agoBerkeley life very healthy
Very healthy.
BLBerkeley Life1 month agoThank you so much for sharing your feedback, John! We're thrilled to hear that you find Berkeley Life to be very healthy and appreciate you taking the time to leave such a wonderful review. Your support means the world to us!
- MBMichael B.Verified BuyerRated 5 out of 5 stars1 month agoTO
Seems to work for me, and helps BP a little bit.
BLBerkeley Life1 month 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!