Now you can test for THC in urine beyond the basic 50 ng/mL. This urine test detects THC at five different levels.
Manufactured to measure THC across the following cut‑off levels:
- 15 ng/mL
- 50 ng/mL
- 150 ng/mL
- 300 ng/mL
- 600 ng/mL
Know Your Level
Marijuana is the most commonly tested drug in urine.
A heavy smoker may still test positive up to four weeks after stopping. THC is fat‑soluble, meaning metabolites bind to fat cells — and fat cells take time to break down.
This test helps you understand how long it takes to become clean.
Take your first test as a baseline. Over time, retest and watch your THC levels decrease until you are completely clear.
Example: A very light marijuana smoker’s results. This would pass in a workplace environment because a faint line is visible at 50 ng/mL.
Example: A moderate to heavy smoker. Positive results at 18 ng/mL, 50 ng/mL, and 150 ng/mL. This would fail a workplace test because the 50 ng/mL line is missing.
Like all drug testing devices, non‑negative results must be confirmed in a laboratory using gas chromatography/mass spectrometry (GC/MS).
