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Hair Alcohol Testing

Hair Alcohol Testing For EtPa and EtG


  • Legally defensible Analysis Results and Expert Reports accepted in all UK family courts issued in 5 working days on average
  • ISO 17025 UKAS Accredited Testing Laboratory (No. 7516) for EtPa and EtG analysis
  • Analysis in accordance with the Society of Hair Testing internationally agreed standards
  • A dedicated Client Support team to manage your case from start to finish with an unparalleled commitment to meeting your deadlines
  • LAA codified prices and competitor price matching
  • Direct contact with experts that have over 50 years combined experience in hair analysis

Society of Hair Testing Guidelines


The combination of both Ethyl Palmitate (EtPa) and Ethyl Glucuronide (EtG) is in line with the guidance of the Society of Hair Testing Consensus for the Use of Alcohol Markers in Hair for Assessment of both Abstinence and Chronic Excessive Alcohol Consumption.

The Society of Hair Testing suggests that EtPa and EtG analysis should be used for the hair strand alcohol test in either a 0-3 cm or a 0-6 cm section, covering approximately the past 3 or 6 months respectively. Upon special instruction we can analyse smaller sections (i.e. less than 3 cm or 6 cm) for the presence of EtPa and EtG, however the results should be interpreted with caution. This is only available after consultation with our experts.

Hair Alcohol Testing Explained


Our hair alcohol test detects two types of alcohol markers, the Fatty Acid Ethyl Ester; Ethyl Palmitate (EtPa) and Ethyl Glucuronide (EtG), as standard to help in the assessment of chronic excessive alcohol consumption. This ensures that there is a greater degree of certainty of the analysis results and helps in the mutual confirmation of the results.

EtPa and EtG are ‘by-products’ produced by the body in the presence of alcohol. For this reason EtPa and EtG are suitable markers for the detection of alcohol in hair when trying to asses chronic excessive alcohol use.

To avoid confusion, we analyse samples of the hair strand for the alcohol markers, not the hair follicle. The hair follicle is a small tubular cavity within the skin that contains the root of the hair.

We perform EtPa & EtG analysis as standard and strongly recommend that this is used in conjunction with other forms of evidence such as blood alcohol tests (Liver Function and Carbohydrate Deficient Transferrin), clinical assessments and history of alcohol abuse to help obtain a more comprehensive picture of an individual’s alcohol use. An alcohol in hair test should not be used to monitor alcohol abstinence.

Any Questions?

Want to learn what is classified as chronic excessive alcohol use? Visit our Frequently Asked Questions page for the answer to this and other information on hair alcohol testing.

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