1. It depends on the length of your hair. Rule of thumb is, your allowed 3 small smoking sessions for every 90 days if your hair is at least 1 1\2 inches long.

2. It will stop depositing after 3-4 days, and yes all the new growth after you shave it will be clean hair. Yes if your hair is not at least 3\4 of an inch they will take it from another spot.


How long is your hair right now and how much time do you have to take the test?