I have not smoked for 30 days, but still failed a take home test, So I bought the Qcarbo 20 from herbal clean to take a test at a lab. The directions say not to take excessive vitamins with the product, my concern is after taking the drink and plenty of water my urine will be clear and this might throw up a red flag, If I take vitamin B to put the yellow back in my urine will this effect the product?