Because we know the complex world of scientific analysis can leave many questions, the information here is geared to answer the most common questions. For more focused, up to the minute information see our Newsletter Archives .
All ingested substances are in a person's metabolic system for a certain time.
The metabolism rate, which determines how long after ingesting a specific substance the drug can be detected in blood and urine, is different for every illegal substance in the underground market. This chart lists each drug, by it's scientific and brand name, and it's approximate detection time in the urine. A myriad of scientific technologies are used to analyze blood and urine for remnants of ingested substances. Read about the science behind your testing choice.