utest Marijuana – THC 15 ng/mL


25 in stock



  • Low level detection
  • Detects below the laboratory screening standard of 50 ng/mL
  • Easy to use, clarity within minutes
  • Friendly customer service
  • Includes: test(s), instructions, test translation, results tracking card, informational pamphlet

THC Detection & Metabolite Information

Detection window in urine:

2-90 days after use
This is a general guideline.

Contributing factors to the length at which THC stays in the system:

Individual’s metabolism (BMI, height, weight, overall health, etc.)
Frequency used
Amount consumed
Potency/concentration of the product consumed

Metabolite: Tetrahydrocannabinol (11-nor-Δ9 -THC-COOH)

Prior to testing, abstain from using any THC, CBD, detox and/or diluting products. Additionally, do not drink an abnormal amount of water or any fluid. This may alter the natural state of the urine sample, resulting in an inaccurate and/or false-negative (clean) test result.

Taking Your Test
Instructions to detect the THC metabolite in human urine:

1. Collect urine sample in a clean cup.
2. Open the sealed pouch by tearing along the notch. Remove the test from the foil pouch and take the cap off of the test.
3. While holding the test, dip the tip of the test (no further than the downward-facing arrows) into the urine sample for 30 seconds; do NOT submerge the entire test into the urine sample.
4. Remove the test from the urine sample; place the cap back onto the test and lay it on a flat surface.
5. For the most accurate results, read the test between 5-30 minutes after use.

Understanding your results

Negative (clean)
2 lines appear; one next to “C” and one next to the “T”
The color of the T line may vary, even a faint “T” line = negative (clean) result

Positive (dirty)
Only one line next to the “C” appears

No visible lines appear
No line next to the “C” appears
*Contact customer service if the result is invalid

Questions? results@utestdrugtesting.com


NOTE: This test (assay) provides only a preliminary qualitative test result. Use a certified laboratory to confirm your results via Gas Chromatography/Mass Spectrometry (GCMS).


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