Beer is occasionally fined using isinglass. Happily, most beer is vegan though! Isinglass is a very pure form of gelatin obtained from fish bladders(often sturgeon). The addition of a fining product simply speeds up a process which would otherwise occur naturally.
In the case of marijuana, they are looking for the THC metabolite, THC-COOH. To figure out if you are âcleanâ for a drug test, you need to be able to determine the amount of THC metabolites in your system, as well as the testing levels for your drug screen. The half-life of THC metabolites is 7 days. Meaning every 7 days, the amount in your body will decrease by 50%. With this number in mind, most people can assume their body will be clean of THC metabolites within 3-4 weeks -- more or less depending on frequency, body weight and amount consumed.
Typically, THC is out by 3-5 days. Marijuana does not enter your blood stream - THC, the active element in cannabis does. THC can remain detectable in the body for up to thirty days, and in hair samples for up to six months. There is no reliably proven way to remove THC from your system, and the products sold by head shops and supplement stores are a scam. The only way to make it undetectable in hair would be to remove all body hair.