You can be sure that it is now already proven that doing the drug test with hair follicle as the sample is more efficient and the result will be more accurate rather than using saliva or blood as the sample. There are many products of drug testing that using hair follicle to test whether a person has the dangerous substances of drugs containment or not.
Actually, you can do this drug testing on your own. You do not have to visit the laboratory if you intend to do the test for the private reason, or to monitor your children. All you have to do is order the product in drug test in bulk. Then the kits and instructions will be sent to your house.
If you do the drug testing for the official reason or ordered by the court, then you have to prove the accuracy of that hair follicle test with laboratory test. However, indeed though the hair follicle test can be categorized as accurate enough, yet the state or country needs proof from the certified laboratory and professional physician. Taking laboratory test may take a few days or even week, while this kind of test only needs a few minutes to get the result.
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