quick update: ever since i switched toothpastes/starting taking my spiro with water, i have had probably 4 whiteheads in the last 3 weeks (significantly down). not sure if it's due to those changes or spiro finally taking effect--i've been reading that it can take 6 to 9 months, and i've been on it just about 9 months now. either way i'm happy! but now i'm wondering if i should switch over completely to retin-a .1 or if it's enough to just use that on my forehead. i'll have to call my derm about that i guess. i will say that my skin is super dry in the last week or so...but that might just be the weather?