The haircut did nothing because they use the first 1.5 inches of hair from the scalp, not the end. So what is the total smoking history for the last 90-100? What kind of hair do you have?

Zydot is one of the best commercially available shampoos for drug tests. Toxin wash and Bio wash are the same thing from the same company but 2-3x more expensive so you can get 2 Zydots at least for one BW/ TW.

May here something Friday or Monday.