The only three words you need to know!!! These are available at most head-shops, and if you follow the directions on the bottle, there is (or used to be) a 300% money back policy, which I have NEVER had to use..
It's not a FLUSHER as most things are. This formula MASKS the THC in your body by surrounding the cannaboid cells in your urin with vitamins and minerals.
Follow the directions on the bottle INCLUDING THE STUFF THAT YOU NEED TO DO A FEW DAYS BEFORE!!! Such as avoiding things that could throw off the test, like coffe, vinager, pickle brine, etc. They list them all for you. The stuff is around 30 bucks a bottle. But that's a small price to pay for most folks trying to get a job, or keep out of jail, or whatever.
I have taken MANY tests for jobs and otherwise. Not to mention 8 years in the Military where I was randomly tested TONS of times, and always had a bottle in reserve.
THIS IS THE ONLY ONE I TRUST!!! And it comes in different flavors!! "Cherry seems to taste best for me."
Just be sure to follow the directions!!! If you just throw caution to the wind and down the stuff, you'll most likely fail. BUT READ THE BOTTLE!!! It will tell you everything you need to know.
Ask your local head-shop!! Hope this helps some people!!!
PS. "That niacin crap made my skin crawl, but i've seen it work for one guy I was training with.. Just don't take too much, You'll itch for a day-and-a-half.. And I'm not sure what it does to your body, but it feels like poison oak."