*The blood and body fluid testing for drug use requires high timeliness, and after about seven days of use, the components contained in the body are basically metabolized completely, making such testing meaningless. At this point, in order to determine whether the examinee is using drugs, it is necessary to detect the components in their body through hair testing.

Research has shown that after entering the hair through blood circulation, it can stably exist on the hair shaft for a long time. By collecting and analyzing hair, the drug-related information of the hair owner can be detected. On April 1, 2017, the new "Drug Addiction Identification Measures" were announced and implemented, which stipulated that detecting hair should be used as the standard for identifying drug addiction. This is because the ingredients can exist stably in hair for a long time (six months or even longer).

Hair sample testing-Micro grinding extraction method
The ST-M200 tissue grinder grinds hair into powder, effectively increasing its surface area and maximizing the full release of drugs. At the same time, the stratum corneum inside the ground hair will be destroyed, which not only facilitates the effective penetration of solvents into the hair, but also has a significant effect on the extraction of the cortical and medullary layers of the hair.