THC (Cannabis / Marijuana)
THC is the active compound in cannabis (marijuana), including smoked, vaped, and edible forms.
Detection window: Detectable for about 3 days after occasional use, but up to 30 days or more with heavy daily use.
Prescriptions: Some legal CBD products contain enough THC to cause a positive result.
How Testr tests for it
This panel is part of every Testr visit. A certified collector observes the collection at your home, checks specimen temperature, and reads a clinical 13-panel cassette on the spot. For measured levels rather than a positive/negative read, add laboratory confirmation: a certified lab quantifies the result and an independent Medical Review Officer reviews it before release.