Doctor insights on:
How Long Does Marijuana Stay In Your Hair Follicles
Depends on use.: It depends on how often you use it. If you used it only once it can be detected by blood for 12-24 hours while it is detected in urine from 1-7 days. With regular use it can be detected in blood for 2-7 days and in urine anywhere from 1-100 days even if a heavy user. Age, height, weight, metabolism all are considered factors. ...Read moreSee 1 more doctor answer
Different answers: I have read that one time use might not even show up. Most answers say that if use is regular, then it will stay for about 2-3 months. One person said that his parents, both of whom are police, told him that it could stay for a year. Hair grows at 0.5 inches per month, so they usually cut off three months of hair growth (1.5 inches) for the sample for detection. Why not just not use the stuff? ...Read more
Depends..: Chronic use may show positive results for months. It depends also on the length/amount of hair tested and the nature of the test being used. Check this link for more details. http://www.ncbi.nlm.nih.gov/pmc/articles/pmc2274831/. ...Read more
Forever: Sort of... The drug goes into the hair and stays in the hair that grew during that duration. So if the mj was used in in june and the hair grew 1/2 inch in june, it would be in that 1/2 inch, and not in the 1/2 inch that grew in july. So when you test the hair you know that hair close to the follicle represents recent use. ...Read more
Put it this way:: If you dyed your hair the day you took "k2 spice, " the area around the juncture of the two colors (and whatever hair length you grew in 1 months after that) would have the drug in it, and until you cut off the rest of the hair, it would be detectable. ...Read more
Alcohol Detection: For a very long time. That is the simple answer. Of course, it depends on how much one has been drinking, how long the hair is; etc. You probably should assume that if your hair has not been cut since your last drink it will be positive. ...Read more
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