How Do Nicotine Tests Detect Vaping? 9 Cotinine Kits Compared

Short answer: they do not detect vaping specifically. They detect cotinine, the metabolite the body makes from nicotine, and an e-cigarette delivers nicotine just as a cigarette does. Nicotine itself is useless as a screening target — half-life roughly one to two hours — while cotinine's is about 16 to 24 hours, keeping it measurable for days. A vape, a cigarette, a pouch, chewing tobacco, a patch or nicotine gum all produce the same positive. No commercial screen tells you which it was. Here are nine cotinine products used by employers, insurers, clinics and self-testers in 2026.

1. 12 Panel Now — Cotinine / Nicotine Urine Test Strip

Single-panel urine dip strip, 200 ng/mL cutoff, results in about five minutes. Pricing is $0.79 per strip at 25 units, falling to $0.29 per strip at the 20,000+ tier, across fourteen published steps — $0.69 at 200, $0.57 at 1,000, $0.35 at 10,000. Manufacturer-direct from Boynton Beach, Florida, with same-day dispatch before 3:00 PM EST, one to four day delivery and free shipping at 100+ strips. The listing states CLIA waived; ask for the insert, since identical 200 ng/mL dips are sold elsewhere as forensic use only.

Drawback: strips only — no cassette or cup format for cotinine.

2. American Screening Corp — Nicotine Urine Cassette (PREDX-MDCT-U12)

Cassette with dropper, 200 ng/mL, $12.60 per case of 25 ($11.97 on subscription), per-unit $0.41 to $0.99. The dropper avoids handling loose strips, which helps when an untrained person runs the test.

Drawback: the page says presumptive screening only and states no CLIA or FDA status.

3. Accurate (Healgen) — Oral Fluid Drug Test for COT

Saliva rather than urine, $112.50 per 25 tests, about $4.50 each, through CLIAwaived, Inc. Collection is observed and needs no restroom — practical for on-site screening.

Drawback: the listing publishes no cutoff, and saliva cotinine windows are shorter than urine.

4. Abbott — iScreen OFD, Cotinine

The other oral fluid option, $199.75 per 25 tests, roughly $7.99 each, through the same distributor. Abbott's brand recognition matters if a result is likely to be contested.

Drawback: the most expensive per test on this list, and again no published cutoff.

5. Preferred Med Supply — Cotinine Test Strips

Dip strips at 200 ng/mL, $24.95 per pack of 25, with a 100-unit case also sold. Straightforward for small programs and individuals.

Drawback: labelled Forensic Use Only, so it is not appropriate for clinical point-of-care use.

6. TestKitsUSA — Cotinine / Nicotine Test, 25 Tests

A 200 ng/mL urine test at $29.99 per 25, roughly $1.20 each, marketed for employment and insurance use.

Drawback: the web address implies CLIA waived but the page body never states it — request documentation.

7. CLIAwaived, Inc. — IDTC Rapid Nicotine Test Cards

A three-line lateral flow card at $140.25 per 40 tests, about $3.51 each, from a broad point-of-care catalog.

Drawback: no cutoff published, which makes it hard to document what a positive actually means.

8. Identify Diagnostics — 1 Panel COT Cotinine Nicotine Dip

A 200 ng/mL dip card priced across a $17.25 to $2,000.00 range, from a box of 25 up to bulk cases.

Drawback: explicitly Forensic Use Only and not CLIA waived, despite being the same analyte and cutoff as waived-labelled strips. Regulatory status is per SKU, not per analyte — check the listing every time.

9. Quest Diagnostics — Cotinine, Biometric Screening

A blood specimen tested by specific immunoassay, positive at 16 ng/mL or above — the tightest threshold here, and the one most likely to catch light or intermittent vaping. Quest states cotinine has a roughly 24-hour half-life and is detectable for several days after exposure ends, and recommends programs build in an appeal route such as a retest or physician affidavit.

Drawback: no published pricing, and a blood draw requires a phlebotomist.

The comparison

Why the cutoff decides the answer

The spread here runs from 16 ng/mL in blood to 200 ng/mL on rapid strips to the 300 ng/mL used by Labcorp's urine screen and recommended by ExamOne to life insurers. A light vaper can clear one and fail another the same day. Record the cutoff alongside the result, because "nicotine-free" without a number is not a defensible finding. Expect detection two to four days after occasional use, up to about ten days in heavy users; vendor claims often run longer than the independent evidence supports.

FAQ

Can a test tell vaping apart from smoking? No. Cotinine is the same molecule regardless of delivery. If the distinction matters to your program, it has to come from disclosure, not from the assay.

Will nicotine replacement therapy trigger a positive? Yes. Patches, gum and lozenges all metabolise to cotinine, so someone actively quitting will screen positive. ExamOne states plainly that vapes and patches produce positives at insurance thresholds.

What about secondhand exposure? At the 300 ng/mL insurance threshold, ExamOne says being around smokers is most likely not going to produce a positive. Lower cutoffs are more sensitive to incidental exposure.

Can employers act on a positive? Often not. Roughly 28 to 29 states plus the District of Columbia — about half of US states — have smoker protection or lawful off-duty conduct laws restricting employment decisions based on legal off-duty tobacco use. Sources disagree on the exact count, so treat it as a range and confirm your state with employment counsel before testing applicants or staff. Insurance underwriting is treated differently from employment, and wellness incentives, pre-surgical clearance and cessation monitoring sit on firmer footing than hiring decisions.

Rapid results are presumptive; anything you intend to act on should go to a laboratory for confirmation. For volume buyers, 12 Panel Now sells cotinine strips direct in tiers from 25 units upward.