Ho long does sensoril and ashwagandha stay in your system once you stop taking them?

Sensoril: Sensoril active ingredient is ashwangandha and was studied with a double blind placebo controlled study with 98 subjects who did state their energy level, stress and cognition improved over two months of use. How long it last is not stated but in my experience, the indian ginseng last only a few days to 2 weeks in the system before it is completely washed out.