Marijuana Topicals: Consistent Use Will Not Result in Failed Drug Test, Finds Study

The consistent, multi-day use of marijuana topicals at varying THC levels did not result in a negative drug test for any participant of a new study published by the journal Forensic Science International.

Marijuana Topicals
A marijuana topical from Kush Creams.

For the study, researchers used “two commercially produced products topically that contained 1.7ng and 102ng THC per mg, respectively”.

In an experiment; “three volunteers (25, 26 and 34 years) applied both types of salves” every two to four hours over a three day period. The application was “extensive (50-100cm2)”, and each volunteer applied the products “to different parts of the body (neck, arm/leg and also trunk, respectively).”

After the first application blood and urine samples of the participants were taken “every 2-4h until 15h after the last application (overall there was 10 blood tests and 10 urine tests conducted for each participant).”

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