Kratom typically stays in your system for about 2 to 9 days, depending on various factors such as dosage, frequency of use, metabolism, and the type of drug test used.

• The elimination half-life of mitragynine, the main active compound in kratom, is estimated to be around 23 to 39 hours, meaning it takes roughly 1 to 2 days for half of the substance to be cleared from the body. Complete elimination can take about 6 to 7 days or longer in some cases

• In urine, kratom can be detected for up to 9 days after the last dose, with urine tests being the most common method for detection. Specialized 10-panel urine drug tests can detect kratom metabolites, whereas standard 5-panel drug tests typically do not

• In blood, kratom may be detectable for about 1 to 7 days, with some sources noting detection up to 7–9 days. Blood tests are less common and generally used in medical settings

• Saliva tests usually detect only recent use (within a few hours to a couple of days), and hair follicle tests may detect kratom for up to 3 months, although research on hair testing is still limited

• The duration kratom stays in your system depends on individual factors such as metabolism, liver and kidney function, age, health status, and how long and how heavily you have used kratom. Chronic or heavy users may have longer detection windows

• The effects of kratom usually begin within 10 to 30 minutes after ingestion and last between 2 to 6 hours, but higher doses can prolong effects up to 8 hours

In summary, kratom can remain detectable in the body for several days after use, with urine tests showing the longest detection window of up to about 9 days. Individual factors and the type of test used significantly influence how long kratom stays in your system.