PEth  Alcohol Testing

  • PEth alcohol testing is usually required in combination with a hair alcohol test for court and legal matters to prove abstinence from alcohol.
  • As a result, laboratory reports from the PEth alcohol test are court admissible.
  • Blood alcohol and hair testing is a popular choice for family court and legal matters.
  • All administration processes certified to ISO 9001, 14001 and 27001.
  • UKAS 17025 ISO accredited laboratory testing.
  • Test results in just 3 working days.
  • Sample collection is by a simple finger prick
  • Competitive costs from only £200 (in conjunction with a hair test).
  • Blood collection at selected locations only.

Please see below for more detailed information about PEth alcohol testing. Alternatively, please call 0800 988 7107 to speak to a Clinical Advisor.

How does PEth Alcohol Testing work?

All blood alcohol testing should be used in combination with a Hair Alcohol Test. This is also the case for the PEth alcohol test. As such, this will provide the most accurate picture of alcohol intake.

Peth Testing

Phosphatidylethanol (PEth) is a very specific alcohol biomarker and provides the highest sensitivity for the detection of current regular alcohol consumption.

PEth enables the discrimination of heavy versus moderate or occasional drinkers, and can monitor abstinence within the past month. Also, age, gender, health or previous alcohol issues do not impact on the results.

Phosphatidylethanol (PEth) only forms in the presence of Ethanol, meaning it is a direct marker for alcohol intake. It is eliminated from the body in about 30 days. As a result, the window of detection is often given as one month.

It is generally accepted that it takes the daily consumption of more than 60g of alcohol (equating to either approximately 3 large glasses of wine, 3 pints of beer or a quarter of a bottle of spirits) daily in the month prior to sample collection to increase Peth concentrations above the upper cut-off value.

When used in combination with a hair alcohol test, which covers up to a 6-month period, we can provide the most accurate long-term overview of a person’s alcohol use.


Example of PEth Interpretation:

  • Peth 16:0/18:1 <20ng/ml – Abstinence or irregular low alcohol consumption
  • Peth 16:0/18:1 between 20–200ng/ml A moderate level of alcohol consumption
  • Peth 16:0/18:1 >200ng/ml– Excessive alcohol consumption


In addition, the frequency of alcohol consumption can affect the PEth result. For example, ten drinks consumed in one episode will produce a higher PEth result than if 10 drinks were consumed in 5 episodes.


Test Accreditation

As a UKAS 17025 accredited laboratory, you can use all test reports for legal and court purposes. Also, all processes follow ISO 9001ISO 27001 and ISO 14001 standards. In addition, the collection and lab analysis follow EWDTS guidelines.


When to use PEth Alcohol Testing?

PEth alcohol tests indicate if alcohol is being consumed excessively. As a result, a test may be required for legal proceedings, or to monitor a person’s alcohol intake.

A variety of civil or legal sectors, including Social Services may request this test. Consequently, we always recommend a combination of blood alcohol testing with the hair alcohol test. In addition, private individuals also use the test to determine alcohol intake or evidence of abstinence.

Also, an Expert Witness Statement can give a further understanding of the test report. You can discuss this at the time of your booking.


Choosing this test

This test provides the following benefits:

  • UKAS 17025 Accredited test
  • Finger prick test that does not require a venous blood sample
  • Provides the most accurate analysis of an individual’s alcohol intake, when used in combination with the hair alcohol test
  • To monitor recent alcohol intake month by month, as a potential alternative to SCRAM alcohol bracelets
  • An Expert Witness Statement provides further understanding of the test report. Thereby, making it especially useful for court cases
  • All processes follow ISO 9001, ISO 27001 and ISO 14001 standards

There are many benefits in using blood alcohol PEth testing. But there are limitations you must consider.

  • We recommend not to use this test in isolation for historical alcohol intake monitoring.

For workplace alcohol testing, we recommend the Breath Alcohol Test.


PEth Alcohol Prices

There are several different factors that influence PEth alcohol test costs. These include:

  • Whether you book an appointment at a clinic or opt for the mobile collection service
  • Or, if you also need a hair alcohol analysis as well
  • Finally, we offer a discounted cost when ordered with the hair alcohol test

PEth alcohol test costs are from only £200, when ordered with a hair alcohol test.  Also, if needed, we can produce an Expert Witness Statement for an extra £145. This can provide more detailed information about a result.



We identify each donor at the appointment, using photographic identification. Next, we collect the blood sample using a finger prick method, seal and barcode the collection tube. The entire collection process follows strict chain of custody procedures. For instance, you will need to sign consent to have your blood sample tested. Also, you will witness the sample collector tamper proofing your blood sample.

We perform your blood test under strict chain of custody protocols by fully trained and certified Collection officers. The test is available at selected Drug Testing Clinics or via the mobile collection service.

Finally, we will issue your test report within 3 to 5 working days of receiving your sample. Usually, this is only 3 working days. Also, blood alcohol test costs include the results package.

PEth alcohol testing is available at selected UK clinics only. Or, you can request a trained mobile collection officer to attend your location.

Our Clinical Advisors will guide you through the entire booking. This includes arranging the appointment for you. Furthermore, they will answer any technical questions you have.

Please note:
All advertised prices are exclusive of VAT