SELFcheck Urine Infection Test Kit | Health | Superdrug
On a Urine Drug Test, THC will appear as a positive within 2-5 hours of use. How long it will still show on a urine drug test is estimated based on frequency of use, but does not take into account the weight and body fat of the marijuana user: One Time User may show positive for 1-6 days; Moderate User may show positive for 7-13 days
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