This is the BEST product out there. I have used this for over 20 years everytime work calls for a test....it works fast. Make sure you read and follow all the instructions that is on the back of the label for Best effective results. Trust me... 1 time I used another brand because the store ran out of this and I failed the drug test...I will never buy another product other than this. I recommend this to all my friends and they are never disappointed.
U won't be either!