i also bought vitamin b-12 and i tried taking 8 times the prescribed amount, it really only turned it a little bit yellow like bitch tint yellow but it was better than completely clear, id say since you have no other choice pop in like 12 times the amount and try that. Also follow N2s dilution method it worked for me with a hometest and i smoked the day before, goodluck. Rebel your a f'in prick.