Okay, I have an interview in 10-12 days for an internship position at GM. I smoked about 5 times 2 weeks ago. I am 99% sure they hair test because thats what i read. I was wondering if anybody has any advice to pass the hair test. I bought the nexxus aloe rid shampoo that was 240$ because i am very serious about this job. I do not want to bleach my hair or any of that but i need to pass this hair test. please help me out! i am new to this forum.