Hello. I have a question about a hair follicle test for someone who I know that has smoked marijuana once within the past 2 weeks. They smoked one joint half at one time, and the other half later that night. They have not smoked for over a year prior to this incident, and have a hair follicle test coming up in a few days. What are the odds of passing this test since it was a one time use within the past year. Thanks. Also are there any flush or cleaning techniques that I could purchase to guarantee a negative result, and should I go that route? It is for a job in their field after they recently graduated from college. Thank you.

Could YOU purchase and use any products that would change the results of YOUR FRIEND's test? No. Your friend will be tested, not you on his behalf. I personally hate it when my friends smoke MJ and then ask me questions about how to pass testing.

Yes, his hair will test positive.

No one here will help you circumvent the law by falsifying test results.