yes its true. you get most of the THC (think like 95%) in the first 3 secs of holding it in
slightlystoopid27 Reviewed by slightlystoopid27 on . Holding it in I read somewhere that holding smoke in doesn't make a difference - all THC is absorped almost immediately. Is this true? Because it's a lot easier on the lungs to just exhale normally and not try to hold it in. Rating: 5