Originally Posted by
DrBill100
You couldn't have chosen a worse drug in relation to hair testing. Cocaine has the highest rate of incorporation (absorption) of any drug.
Whether or not that small amount will show in hair could depend on your ethnicity and hair color. Cocaine has a very high affinity for melanin.... that's what gives your hair it's natural color. The darker and thicker your hair the greater the likelihood of absorption.
On the other hand, one time drug use is seldom detected in hair but due to the characteristics of cocaine and the rapidity of incorporation it is difficult to tell.
I note you said smoke. You aren't referring to crack are you?