There are different types of drug testing around, and probably hair testing remains one of the most flawed testing being used. What it does is it works by detecting drug metabolites passively diffused from the blood stream to the base of the hair follicle. With a pencil thick sample, it’s about an inch and a half long, hair test labs can sense drug within the past three months, this includes the pattern of use- if you have been smoking regularly or occasionally.
For people with very short hair, labs will take a sample from any available part of the body. Hair test will never become the prime test in detecting drug substance, and maybe it will never be. The issue with hair testing is that it takes very low concentration that they look for traces of drugs that are at least two orders of magnitude, that is lower that urine testing. Therefore, if the hair is not clean, if there is the smallest microscopic trace of drugs left n the hair, washing it will surely cause a false positive, because the true positive concentration these drug testers are looking for as very low.
Furthermore, environmental contaminants are the huge issue for hair testing. The microscopic amount of smoke and powder cling to the hair shaft and winds up as a trace amount on a false- positive hair test. To make matters worse, these contaminants hold on to the dark, course hair much more, making African- American, Asians, and Latinos significantly more susceptible to a false positive result. Reports says that dark haired people are ten to fifty times more likely to test positive for drug use from a hair follicle drug test.
When you want to beat a hair test, the best that you can do is to use one of many follicle shampoos available from a variety of retail outlet nationwide.
For weed seeds users, at least now, you know what kind of shampoo would be very useful for you.
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