Well anyways here is what I plan on doing. I smoked on august 9 and plan on getting my head buzz cut (not a complete bald shave) and shaving all my body hair with the exception of eyebrows in early December. Potentially I will have the hair test as early as April. So I'm wondering if I shave in December will enough time had passed from when I smoked that the hair that starts growing back will be clean no matter how long? If not when should I start shaving based on the date I smoked plus the fact that it was my first time and so I'm told not very strong weed.
bsynder21 Reviewed by bsynder21 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