32 vs. 48 hours for keratin treatment?

Hey everyone! I did an at home brazilian keratin treatment, and my results look GREAT! however, it says to leave on for 48 hours before washing and i was wondering if it would be okay to leave it on for only 32 hours. I have a feeling when i wake up my hear will look too oily to wear to work leaving it down and want to wash it! is that okay or will my results be tampered? i have very thin frizzy shoulder length hair if that helps (naturally)