9-carboxy-THC is a product of the body’s metabolism of THC and it’s detectable for a longer period of time than THC is detectable. Urine tests look for 9-carboxy-THC.
Some laboratories test for detox fixes as well as the THC.
THC may remain in your system for 30 days or longer.
The detection period for 9-carboxy-THC in urine may be three months for heavy users.
Research on saliva tests indicated that they may be able to detect THC up to eight hours after ingestion, but they are not widely used.
Exposure to second-hand marijuana smoke may result in a positive urine test within one to two days.
Some private companies may use hair tests to detect possible marijuana use. Positive hair test results have been found to be unreliable.
Now that you understand about 9-carboxy-THC perhaps you understand why the detox may not work.