How much certo and how much b12 for urine test?

For a urine test, the typical recommendation for using Certo (a fruit pectin product) is to consume one packet mixed with water about 1-2 hours before the test. As for vitamin B12, it's often suggested to take a dose of around 500-1000 mcg, but this can vary based on individual needs. Always consult with a medical professional for personalized advice, especially regarding drug testing and supplementation.