i have a drug test today. i went to buy certo but they didnt have it. then i saw Knox. its a gelitine mix kinda like certo. i remembered my friend telling me that this works in the same way certo does. anybody here used it before. i just need some reasurence
DPrez Reviewed by DPrez on . Knox for clean drug test i have a drug test today. i went to buy certo but they didnt have it. then i saw Knox. its a gelitine mix kinda like certo. i remembered my friend telling me that this works in the same way certo does. anybody here used it before. i just need some reasurence Rating: 5