Unlike urine tests which can only detect recent use, these hair tests can detect historic use. Head hair grows at an average of 0.5 inches per month, so depending on how long your hair is, you could detect usage of several months or even years.
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Hair detection has unique advantages in the field of drug testing. Hair can provide long-term medication information that is not available in other biological samples such as blood and urine. Hair samples are relatively easy to take, easy to carry, and easy to store for long periods of time. The slow metabolism of drugs in hair can persist for a long time, and these factors provide better conditions for drug analysis.
Cotinine is the first-stage metabolite of nicotine, a toxic alkaloid that produces stimulation of the autonomic ganglia and central nervous system when in humans. Nicotine is a drug to which virtually every member of a tobacco-smoking society is exposed whether through direct contact or second-hand inhalation. In addition to tobacco, nicotine is also commercially available as the active ingredient in smoking replacement therapies such as nicotine gum, transdermal patches and nasal spray.
For more detailed information about drugs and drug testing read our A-Z on drugs.
For a laboratory based hair drug test you can view these test kits here.
View the full test instructions here.
These tables show the different drug types and how they are grouped together: BARBITURATES – click on the link to get more detailed information Drugs include Amytal and Amytal Sodium (Amylobarbitone) Luminal (Phenobarbitone) Nembutal (Pentobarbitone) Pronominal (Methyl phenobarbitone) Seconal (Quinalbarbitone) Soneryl (Butobarbitone) Tuinal (Quinalbarbitone and Amylobarbitone) BENZODIAZEPINES – click on the link to get […]
Abbreviated name on test Proper name Other names Approximate detectable time it remains in the URINE after use. AMP Amphetamines Speed, amph or whizz. 2-6 days BAR Barbiturates Depressants, Barbs, Downers 3-8 days BUP Buprenorphine Subutex 3-6 days BZO Benzodiazepines Benzos, Rohypnol or roofies 2-14 days COC Cocaine Coke, crack or charlie. 2-5 days MDMA […]
The 1971 Act (amended through the Criminal justice 2003 Act, which came into effect in 2004) divides drugs into three classes depending on the degree of harm deemed attributable to each drug. In turn the maximum penalties for being convicted of an offence under the Act are fixed according to the class of drug. The […]
Watch the effects of Cannabis Drugs are everywhere around us and most parents worry about their child becoming involved with drugs. Parents often feel they don’t know enough about drugs to help prevent their child from coming to harm. In this section of our site, there are basic details on the most commonly used drugs […]
Providing information on specific drugs and how they are used. This list is designed to benefit professionals who work with drug users and would like more information on the non-therapeutic use of drugs. There are seven sub-sections, corresponding to the seven major drug groups: For each sub-section the main drugs are listed and hyper linked […]