 [ Symptoms ] can a light marijuana user get clean in 23 days [ Disease ] clean what using marijuana is decisional so just make a decision not to use it if you are talking about getting a clean drug test it would depend on many factors the sensitivity and type of test used by the lab and what you consider as a light user and how fast your body clears cannabis from your system it is possible that some lab tests like hair will detect thc at 23 days