Niacin and Certo are ancient internet myths. Yet, people swear by them because they wrongly credit the niacin and certo when the real hero was the copius amounts of water they drank with the niacin and/or certo that made these people test negative. These people passed by merely diluting their urinestream to where their urine sample tested just on the good side of the cutoff level of the THC screen. They would have gotten the same result just on the water consumption alone without the niacin or that nasty tasting certo thrown in the mix.



Follow the Dilution sticky thread for tips on how to properly dilute, while staying on the good side of the specimen integ checks.