All you need is...

for weed all you need is an awesome product called flush. you can buy it in canada at some drug stores but i dont know about other places but im sure u could probally get it online (ebay).

all you do is drink it b4 your test, use the bathroom 3 times and you good to go for your test that day. what it does is distorts the results (THC wont show up). the person giving the test will probally be suspicious that you used it but cant prove it cause it makes your urine really yellow, so either your dehydrated, have too much vitamine B (i think, or someother vitamine), or used a flush.

It works like a charm!

weed only tho. and dont attempt using when theyre testing your hair, cause your pretty much fucked there no matter wat you do cause thc stores in your hair untill you cut it off.