But does the shampoo work well?

I saw a brand that works 99% of the time. Is it just good marketing or is it true?
guyoscar Reviewed by guyoscar on . NEED HELP I am 18, male, white, about 5'6" and 130lbs I have been smoking for a little over a year For the past 3 months I have smoked about every day I have a hair test in about a week. What is the best method to pass this? Is it even possible? Rating: 5