In most cases, it is. Wondering how long does Toxin Rid keep you clean is a bit redundant. The Toxin Rid permanently eliminates THC out of your system. We need to remember that Toxin Rid is not a trick to pass a drug test like synthetic urine is. It is one of the most intensive 10-day detox courses you can find and it is very effective at eliminating THC out of your body completely.