Depleted
0.1 mg/dL
What it means
What it doesn't mean
What to do next
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Send us a photo
Five blocks of pink on one small key, and bathroom lighting shifts all of them. If your pad sits between two bands, send a photo and someone on our team will match it with you.
Hold the strip flat against the colour key on the pouch so both are in the same shot.
Take the photo at 1 minute. After 2 minutes the pad keeps changing and the reading no longer counts.
Daylight if you can, phone straight above, no shadow across the strip.
How this works
Your photo is reviewed by a member of our support team. They are not healthcare professionals and cannot diagnose a condition or advise on treatment. What they can do is help you read what your test is showing.
Nothing here is automated. Your photo stays confidential and is used only to answer you.
Lost the card from your kit? You can still send a photo. Put the cassette on a plain white surface in good light.
Taking the test
Small handling details, and one that trips people up.
WATCH IT DONE
Documents
Questions
Most likely, yes. Salivary nitrite moves quickly with what you've eaten, how recently, and what time of day it is. That's the nature of the marker, not a fault in the strip. The fix is consistency: same time of day, same point in your routine, and compare those readings to each other rather than to a single earlier one.
That's the spike band, and it's expected. It usually shows up one to two hours after nitrate-rich food or a supplement, and the instructions describe it as a safe, temporary rise that comes back down on its own. They don't give a time window for how long that takes, so the practical answer is to test again later in the day, before food, if you want to see where you normally sit.
Better not to. Brushing and mouthwash both change the bacteria in your mouth that this reaction depends on, so a reading taken straight afterwards won't reflect your usual level. Test before you brush, not after.
The instructions say to hold off until you've finished. Antibiotics act on the same oral bacteria involved here, so readings during a course won't be comparable to your others.
The first position on the key marks the bottom of the scale, where no nitrite is detected. The instructions don't print a value or separate guidance for it. If your pad matches there, read it the way you'd read Depleted, and retest in the morning before food or brushing to confirm.
Nitrite in your saliva. The pad uses a colour reaction that goes from light to deep pink as nitrite concentration rises, and research links salivary nitrite closely to salivary nitric oxide. It's a semi-quantitative read, which means it places you in a band rather than giving you an exact figure.
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Running low
Nitric Oxide Test Strips
30 individually sealed strips
Often used alongside
Urinox-10 Urinalysis Test Strips
Ten markers from one strip, including specific gravity
Learn moreNitric Oxide Test Strips give a semi-quantitative reading of nitrite in saliva for general health and wellness awareness. Nitrite is not the only indicator of wellbeing, and a reading can be affected by diet, timing, oral care and medication. This test does not diagnose, treat, cure or prevent any condition and is not a substitute for medical assessment. Talk to your provider about readings that concern you.