It evaluates consumers'genes for susceptibility by spitting on the simple kit. Then lab experts will analyze your saliva. Next, see the results in the computers. Nevertheless, there are controversy about DTS testing since their are difficult to interpret. Although there are some limitation, DTC testing can be beneficial in three main ways. First, it can change their lifestyles in better ways in consumers at risk. Next, it is the genetic information which useful for people who are thought to have children. Finally, it good for effective treatment.