Quote Originally Posted by bsynder21
Was I right in worrying about what the metabolites that are left in my fat cells and blood stream, and if these will add THC to my hair after my buzz cut and shave?
Nope, it only deposits when you smoke and stops after 2-3 days.
Deige Reviewed by Deige on . Hair test Hi I was wondering just how the hair tests worked for marijuana. Hypothetically speaking, if a person smoked for the first time ( lets say last week) I'm wondering how long it will take for them to get clean. What I mean is if a lab needs the first 1.5 inches of hair which takes on average 90 days to grow how long will it take for none of their hair to show traces of THC? On average how long will it take the hairs on their head and body to show no traces of THC while growing? Rating: 5