I hear all these stories about individuals using substitution or dilution, but I am curious to know how long it took people to clean their system naturally. I know for me I didn't test negative until day 60, and I used my first morning urine after working out the day before. So clearly the 30 days is not applicable to chronic everyday smokers like myself. Let me hear your stories.
wjohns13 Reviewed by wjohns13 on . How long did it take you to clean out naturally I hear all these stories about individuals using substitution or dilution, but I am curious to know how long it took people to clean their system naturally. I know for me I didn't test negative until day 60, and I used my first morning urine after working out the day before. So clearly the 30 days is not applicable to chronic everyday smokers like myself. Let me hear your stories. Rating: 5