Niacin is an old myth. It does nothing to rid the body of THC.

There is no product that can rid the body of THC. Only time and exercise can do this.


You need to exercise when you take that niacin. While your metabolism is boosted up, exercise and start burning that fat out of your system.
Anytime you burn fat cells, the stored THC metabolites are released back into the bloodstream. The kidneys filter the THC metabolites from the bloodstream and deposits them in the bladder. THC does not burn away with the fat cells.
For this reason, all exercise should be avoided 3 days before the U/A. Youd want to go into "storage mode" - be lazy as possible to prevent a bunch of THC metabolites from being released, which will end up in the urine to be detected.

Drink fluids to help your kidneys flush out the metabolized lipids.
Drinking fluids only dilutes the THCA concentration thats present in the bladder. The idea is to "thin out" the THCA concentration just enough for the urine sample to register below the cutoff thresholds of the drug screen. This action is only temporary. Once the fluids ingested had been voided out, the dirty donor will resume testing positive for THC. Drinking fluids has no effect on GFR (the rate of which THCA is filtered from the bloodstream by the kidneys), so therefore drinking fluids days before the U/A is of no help.


Home tests are only accurate if the first urination of the day is being used. The assays used at the lab are no more accurate than the home testing kits, since they function on the same principle.