Ecstasy for one...
As long as you have the hair you had when you did the speed.
I know Adderall will test positive for amphetamines.
In a hair follicel will Effxor XR show as methanphetamine
It would have gotten in your child's hair or system because he's doing speed.
Hair analysis is considered unreliable for testing substances or toxins in the body because external factors such as hair products, environmental exposure, and hair color can affect the results. Additionally, there is no standardized method for hair analysis, leading to inconsistencies in interpretation and accuracy.
as long as it takes for your hair to grow out
NO, in short hair test only test for the drugs that are in hair follicle, they do not test the quantity of the drug in the follicle. so the hair drug test will show you as being positive for amphetamines, but they can't determine how much amphetamines was used, so going from 20's to 30's will show up no different on a hair test.
Adipex (phentermine) may initially cause a false positive for amphetamines, though further testing will resolve the problem.
Amphetamines
yes, it is possible to test positive for amphetamines (urine, hair, saliva, etc.. drug test) Xenadrine contains ephedra, also known as Ma Huang, which is a source of ephedrine. If use is discontinued should be out of metabolic system after 5-7 days .Also is best to warn testers before hand so if you test positive they can run more accurate test to confirm you really took dietary supplement.
Unfortunately when it comes to drug tests Amphetamines are Amphetamines and they can't distinguish which type you took. If your prescribed an Amphetamin such as Adderall, Vyvanse etc.; then you have nothing to worry about and they'll simply dismiss the result. If your not prescribed and come up positive for Amphetamine they can't tell which you took so you are pretty much S.O.L! To help pass the test you can try Hair Follicle Cleansing Shampoo.
Hair analysis is the study in crime scenes where special dedicated people use hair samples to justify and solve crimes.