Just got the 7 day complete body cleanser from gnc in the red and blue box. My friend works at GNC and says this will work...I have exactly 7 days before my drug test and I smoke atleast 4 bowls a day prior to detoxing. I also have been drinking 5 cups of this tea a day from Whole foods called "Get Clean" and taking my mothers rx 500 mg niacin pills. Am i screwed for my test? Should I just use someone elses urine?