PEth and Hair Alcohol Testing

ToxLogic provides drug and alcohol testing in hair plus alcohol monitoring using PEth (phophatidylethanol) analysis of a fingerprick blood collection.

The analysis of hair for drugs and alcohol can help establish a history of a donor’s drug use. When drugs enter the bloodstream, parent drug and/or metabolites are laid down in the hair as the blood circulates around the hair follicle. This drug remains in the hair as it grows so, by analysing a length of hair, the drugs used over a certain period of time can be determined. A 1cm length of hair will give approximately a 1 month history of the donor’s drug use.

Hair collections are done under Chain of Custody conditions using a specialised collection kit supplied by ToxLogic. The collection involves cutting 2 locks of hair close to the scalp from the area around the crown of the head. Each lock should be 50 – 100 hairs and, with normal hair growth, the collection site is not usually visible after collection. If head hair is not available, body hair can be used in most cases.

Testing for Alcohol in Hair

When testing for alcohol, the laboratory analyses the sample for Ethyl Glucuronide (and Fatty Acid Ethyl Esters if requested). When used in conjunction with clinical judgement and blood tests, these hair analysis results can be useful in assessing donors who are suspected of chronic alcohol abuse.

The analysis of alcohol in hair can also be used to confirm abstinence from alcohol over time. Cansford Laboratories is the first testing facility in the UK to offer this very sensitive test. Please contact ToxLogic if you require further information about this test.

Hair analysis for drugs and alcohol is currently used in Australia and overseas by child protection and family law professionals, sporting bodies, drug rehabilitation clinics and security companies. Hair analysis is most useful as a pre-employment test for the workplace or as part of a long-term monitoring program in legal and rehabilitation fields.

Hair samples are sent to the Cansford Laboratories in Cardiff, UK, and results are returned within just 1 – 2 weeks of collection. The laboratory is also able to prepare an Expert Witness Statement if requested (additional charges apply).

Testing for PEth (phosphatidylethanol) using a Dried Blood Spot (DBS)

Phosphatidylethanol (PEth) only forms in the presence of Ethanol, meaning it is a direct marker for alcohol intake.
This makes is a more sensitive indicator than existing markers of CDT, LFT and FBC.
• PEth can be detected for up to a 28-day period.
• PEth is eliminated from the body in about 30 days, meaning the window
of detection is often given as one month.
• Alcohol testing a PEth blood sample provides a view of the last 28
days of consumption. If the client needs to be tested for a longer
period, a hair alcohol test can cover up to six months
of consumption.
• Collection of both a hair and blood sample can compliment
each other to show comparisons or differences between
recent and long-term alcohol use.

Samples for PEth testing are sent to Cansford Laboratories with results returned with 1 – 2 weeks of sample collection.  Cansford Laboratories provides important information about PEth testing on their website.

For all enquiries relating to hair testing or DBS testing
Tel: 1300 56 86 96

  • NATA Accreditation

    nata ToxLogic Pty Ltd, trading as JK ProCare Systems, is accredited by the National Association of Testing Authorities (NATA) for Workplace Drug and Alcohol testing. We are accredited for urine testing to AS/NZS 4308:2008 (Section 2 and Appendix A) and for oral fluid testing to AS 4760:2006 (Section 2). Our full scope of accreditation can be viewed on the NATA website by clicking here.
  • Australian Quality Training Framework

    Our sample collectors are required to successfully complete a recognised training course in Chain of Custody sample collection and transport. Each collector must receive a statement of attainment for the course in accordance with The Australian Quality Training Framework.


  • Company History

    Occupational Toxicology Services was established in 2001 as a consultancy service for clients and laboratories wanting to conduct urine Drug & Alcohol testing in accordance with AS/NZS 4308:2001. Occupational Toxicology Services worked closely with J & K Nominees, one of the first workplace Drug & Alcohol testing companies in Australia. JK ProCare Systems was established in 2005 as the Victorian collection agency of J & K Nominees.

    ToxLogic Pty Ltd was established in 2013, encompassing the work of Occupational Toxicology Services Pty Ltd while retaining JK ProCare Systems as a trading name.