I like the vitamins. They seam to be doing the trick.
It is great product Which I use for so long
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USANA Health Sciences
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Nitric oxide (NO) is a key molecule for healthy blood flow, energy, and cardiovascular performance. With USANA Circulate+ Nitric Oxide Test Strips, you can see your nitric oxide levels in action—in just seconds.
Designed for simple at-home use, these quick saliva test strips give you instant feedback on how your body is responding. Use them daily or weekly to track your levels and see the difference Circulate+ makes for your health and vitality.
✅ Why You’ll Love It
Provides a fast, accurate check of nitric oxide levels
Easy, at-home test with results in under a minute
Helps you track progress when using Circulate+ nitric oxide support
Non-invasive, simple, and reliable
Makes your health visible, measurable, and personal
✅ How to Use
Wait at least 1 hour after food or drink.
Gather saliva on your tongue.
Touch the collection pad (“Saliva Here”) for 5 seconds.
Fold strip and hold pads together for 10 seconds.
Separate and compare color to the included test chart.
Consume 1 serving of Circulate+, then repeat after 60 minutes to see the improvement.
✅ Pro Tips
Avoid touching the test pad directly to your tongue.
Use in a well-lit area for the most accurate comparison.
What to Expect:
Clear, visual proof of nitric oxide activity
Motivation to maintain a healthy routine
A fun, science-backed way to track your progress
* These statements have not been validated by the Food and Drug Administration
View full detailsEvery USANA product is backed by science, manufactured in the highest-quality, state-of-the-art facilities, and laboratory tested for:
Purity—ensures products are free from contaminants including heavy metals, pesticides, and residual solvents
Identity—confirms the ingredient identity to determine efficacy, safety, and quality
Composition—provides critical data on every batch down to weight, thickness, disintegration, and safety
Strength—includes multi-method testing to prove the potency claimed on each product label
Safety—verifies a high-quality product that’s both safe and effective
How to Recycle: The outside carton is fully recyclable. After single-use stick packs are removed, flatten the box, then place it in a recycling bin.
I like the vitamins. They seam to be doing the trick.
It is great product Which I use for so long
Been using very long time