Famous How Long Do Benzos Last In Hair References. Benzodiazepines in saliva tests a saliva drug test fares comparably better compared. 3 days for short acting (lorazepam) 1 month for long acting (diazepam) pcp:

Web you can see if benzos stay in your hair strand for up to 90 days. It will take the body up to a week to reduce the presence of the drug. Many things can cause you to lose more hair, here is a list from the american academy of dermatology association.