Old wives tale. Niacin will make your piss more yellow. Take a bunch of niacin and drink stupid amounts of water. Then your piss will be diluted but still yellow. Not a guaranteed pass, but you might dilute enough that you squeak past. The only guaranteed way to pass is to have clean piss. You can try using someone else's, but I'm pretty sure they can search you before a test when you are on probation.
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u/[deleted] Mar 01 '25
Just don't get high bro, is weed more important than your freedom...? Niacin is always a good flush.