Bleach will throw off the ph level, causing the sample to be labeled as adulterated. In the drug testing world, an adulterated sample is treated as a failure and a refusal to test. This would disqualify you from participating in any drug-related assistance program that the employer may offer.

Some labs will also use a dipstick which have a testing panel for 'bleach' (eg Urinecheck 7 test stick).


Keep in mind that not everyone here is getting tested with a simple THC assay kit given by mommy and daddy. Most labs perform integrity checks on the sample before it goes thru the drug check. These integ checks will bust the bleach user every time.

Save the bleach for the laundry.