If you are thinking you will have problems passing a saliva test then that may be because you have recently used an illegal drug. Altering your saliva to pass a saliva drug test is just as illegal as using or selling drugs. You should not use drugs, then you will not have any problems passing a saliva test.
The best way to pass a saliva drug test is to be drug free. Quit doing drugs, and your saliva should be clear within 30 days. You can also purchase a mouth spray at most smoke shops to help you pass this test.
You can find more information here: bodycleansers.com.
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