How should I differentiate head and body hair samples?
• Can I give a mixed sample of head and body hair? • Is it possible to do two different hair drug tests with different hair length to determine the approximate length of drug use? • How sensitive are drug testing kits and what are the general drug cut off levels? • What are the average drug testing detection time periods by drug and test type? • How long does Marijuana stay in the body and is detectable a drug testing kit? • How long does Cocaine stay in the body and is detectable by a drug testing kit? • What is crack cocaine? • Can I test for a prescription drug (like valium, xanax, adderall, ritalin) use with your drug testing kits? • What is Urinalysis? • I recently purchased a urine test kit. The drug test results show a pink line near the top, and a very faint, yet visible line further down. Is this positive or negative? • Is it possible for someone to bleach or use shampoo to trick and pass hair drug tests that you sell? • Will the hair drug test just a yes/no answer or will it
