Quote Originally Posted by bobbyboy
Hi many thanks for the reply! It would be shaving with a electric head trimmer, so would that be ok?

My understanding is that THC remains in the hair follicle, but does the trace grow out or remain in the follicle part of the hair beneath the skin? Just want to be 100% clean

And finally to confirm is it true that it only takes up to 10 days for it not to be deposited in to the hair? I haven't smoked for 10 weeks and intend on shaving soon so I have enough time for it to grow back or the test.
Yes the electric trimmer will work fine and you have waited long enough to cut your hair.

THCA stops depositing into the hair 2-3 days after your last smoking session. So once the follicle reaches the surface and is cut off, all new hair growth will be clean. I recommend that people wait 10 days to cut their hair after their last smoking session and then allow the hair to reach at least 3\4 of an inch. Most testers look for at least that amount or more when taking your hair sample for testing.