Alcohol testing Ireland
AlphaBiolabs has been performing alcohol testing for members of the public, the legal profession and local authorities for over 20 years making it one of the most established alcohol testing laboratories in Ireland.


  • Both hair and blood testing are available
  • Liver function and carbohydrate deficient transferrin tests are performed
  • Price guarantee
  • UKAS ISO accreditation
  • Laboratory on-site
  • Fastest turnaround times

About our alcohol testing

Alcohol abuse can be detected in hair by testing for two different alcohol metabolites. The first metabolite is ethyl glucuronide (EtG) and is present on the outside of a person’s hair shaft. The second metabolite is fatty acid ethyl ester (FAEE) and is found on the inside of a hair shaft. By performing both tests the evidence is strengthened to determine whether alcohol has been chronically abused.

According to the Society of Hair Testers (SoHT), the minimum length of hair required for an EtG and FAEE analysis is 3 cm from nearest the scalp (proximal).

Two additional tests for alcohol are available using blood samples. These are a liver function test (LFT) and a carbohydrate deficient transferrin (CDT) test. Please see the details below.


Alcohol in sufficient quantities can be toxic to the liver. An individual who chronically abuses alcohol may experience cirrhosis of the liver leading to reduced function or, in the most extreme cases, death.

A liver function test will test for liver enzymes in the blood, which strongly indicate damage to the liver.  Our liver function tests include five markers: total bilirubin, aspartarte aminotransferase (AST), alanine aminotransferase (ALT) and Gamma glutamyl transferase (GGT).


A carbohydrate deficient transferrin test is widely used as a measure of chronic moderate-to-heavy alcohol consumption. A simple blood sample will provide information to determine whether alcohol has been chronically abused in the preceding 4 weeks.

In cases of chronic alcohol abuse, the CDT value will become elevated to a value outside of the normal range. Paired with increased LFT values, and elevated EtG and FAEE results, the evidence will provide conclusive support for chronic alcohol abuse, or indeed abstinence if the results are within the normal range.


Our customer service department is open 8.30 am to 5.30 pm, Monday to Friday. Call our free phone number 01 402 9466 to speak to one of our experts. Outside these hours, please leave a voice message on our answer phone and your call will be returned as soon as possible. Alternatively, you can email us at

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