I have a drug test tomorrow and bought a Detox Kit. Will smoking a cig the day before my test affect results?

Ok, so i have a drug test tomorrow at 11am. About a week ago i bought a detox kit called Detox Value Pack. On the back it says to avoid all toxins up to 48 hours prior to having to take your drug test. Obviously i want to p so i haven't smoked marijuana (the reason i have to drug test) or drank any alcohol. The only thing im worried about is im a cigarette smoker too and it didn't even cross my mind that that'd probably be considered a "toxin". I smoked a cigarette just an hour ago (under 24 hours till my drug test). If anyone has any experience with these detox drinks can you tell me if this is going to affect me ping this drug test? Thanks in advance.