Yes they do.
If you are referring to a saliva drug test, most will give a reading in a matter of seconds.
When I got tested for the Kroger distribution center they did urine test the stores however do mouth swabs or urine.
1:saliva drug test is available in four, five or six drug testing configurations. 2:saliva drug test products to help you with any oral swab drug test and urine and hair and thirty percent test saliva
a drug test
Saliva test
saliva test
No.
saliva test
Saliva drug tests usually detect 3 to 5 days.
Hydrogen peroxide is not typically effective in helping to pass a saliva test. Saliva tests are designed to detect recent drug use, and hydrogen peroxide is not proven to mask or interfere with drug metabolites in saliva. It is always best to refrain from drug use if you need to pass a drug test.
yes
Saliva.