The easy to use Ultra-Sensitive Nicotine Saliva test detects nicotine/cotinine at a 10ng/mL level, which is more sensitive than the standard 30 ng/mL level. The 10 ng/mL level is so sensitive it will detect recent use that other tests may miss. It detects nicotine use up to 4 or even 5 days since last use. Because this is such a sensitive test it will detect both recent direct use, such as smoking or vaping, or significant exposure to tobacco, such as being in a closed room or car with a smoker or vaper for an extended period.
In a comparison of urine Nicotine to these given at the same time, urine showed a negative while this saliva test showed positive. I will be staying with these.
