OK- one thing I have learned is to order extra testing supplies, so while I am going through my DPD at a rapid pace, I have already ordered another one (i love amazon prime) so 2 scoops is fine.

on a related note: i wanted to ask about the plastic testing vial (Taylor gives it a strange name…I was reviewing their testing vid's last night). Just noticed a film inside the vial (i typically rinse,shake, air dry). I used dish soap today to clean it. Is this OK? (no info on vial cleaning anywhere)...