Does C8 Work?

Hi everyone. I've been doing keto for a couple months. I just had a cheat weekend. So, I want to get back into ketosis quickly starting Monday. 
Monday my Ketoscan mini said my keto level was 4.5.

I'm fasting:
6:00 AM I take Bulletproof C8 (2 tablespoons)
6:30 AM No change, Keto level is still 4.5
7:00 AM Still no change. Still 4.5
8:30 AM Still 4.5
I am confused. Does C8 really work? Is it just hype?