We offer:
PEth Testing
  • Phosphatidylethanol (PEth) by dried blood spot (DBS) analysis
  • PEth is a phospholipid formed only in the presence of ethanol
  • PEth is a direct marker for alcohol use and is highly correlated to alcohol intake over the past month
  • PEth provides proof of abstinence and also distinguishes between heavy and moderate drinking
  • ToxLogic is NATA accredited for workplace drug testing
  • Accreditation for urine and oral fluid collections and testing
  • NATA Accreditation No. 19780
We Offer:
Hair Testing
  • Hair sample analysis to test for use of, or abstinence from, drugs and alcohol
  • Testing can be done using head or body hair
  • Testing laboratories are accredited to ISO/IEC 17025
  • Results returned within 10-14 days of collection
  • Expert reports available
Workplace Testing
  • On-call service available in Metropolitan Melbourne and Gippsland Region
  • 24 hours a day, 7 days per week
  • Excellent response times
Urine And
Oral Fluid Testing
  • We are a NATA accredited collection agency
  • Urine testing conducted in to AS/NZS 4308:2008
  • Oral Fluid testing conducted to AS/NZS 4760:2019
  • Services available on-site or at our offices in Melbourne and Gippsland
Chain of Custody
  • Chain of Custody is our standard procedure for all collections
  • Chain of Custody is legally defensible
  • Results of hair analysis are often used in court cases

Nail Drug Testing

Nail drug testing provides an alternative sample when hair is not available or too short for the time period required.

How does nail drug testing work?

Nail testing works by detecting drugs and their metabolites that are deposited into nail tissue. Blood vessels underneath the nail deposit these metabolites into the keratin, the part that makes your nail hard. As the nail grows longer and thicker, its layers provide a history of substance use.

In cases where head hair is unavailable or regularly chemically treated, nail clippings (2-3mm minimum) may be used. A section of nail can have longer window of detection in comparison to head hair. This is because they are tested as a whole sample, that is nails cannot be sectioned like head hair.

A toenail sample will tell us whether the substance has been used in the last 12 months. With the faster growth rate of fingernails this is narrowed down to the last six months.

Nail samples are sent for analysis to Cansford Laboratories in the UK. Cansford have over seven years’ experience with nail testing and can analyse for more than 130 drugs/substances in nail samples. This includes illicit drugs and prescription medications, alcohol, steroids and new psychoactive substances.

How is the nail sample collected?

In front of a trained ToxLogic collector, the individual will wash and dry their nails. They will then be given sanitised nail clippers or scissors (provided by ToxLogic) and then, in front of the collector, the individual will cut their own nail samples. The nail is then clipped down as far as the top of the fingertip.

Nail samples must have a normal appearance, be clean and free of false nails or nail varnish etc.

When is nail testing useful?

In general, nail drug testing should only be used when there is no head or body hair to test, or when a donor has very short head or body hair. Nail testing is not the preferred method if hair is available. However, that does not diminish its accuracy. Nail drug testing can provide a yes/no answer to whether a specific substance has been used. For fingernails it is in the last six months, or twelve months if toenails are sampled.

Occasionally, nail testing can be used in conjunction with hair testing – generally in cases where an individual is regularly bleaching/dyeing their hair. It is also useful if their hair is shorter than the time period required. In these cases, hair testing may be requested to cover a timeframe of a month or two and nail testing will cover the last six or twelve months.

Limitations of nail testing

Nail testing has its limitations, especially when compared to hair testing. Nails are much slower growing than hair meaning the most recent time period assessed will be around three months in the past. Hair testing on the other hand can detect use as recently as two weeks.

Nail testing is also non-specific in its timeframes. While hair drug testing can section out month by month, enabling the indication of increasing or decreasing use, nail testing will only provide an overall result. The results timeframe, depending on the sample, will be six months for fingernails and twelve months for toenails.

Please note: nail tests are not appropriate for detecting one-off substance use. Toenail samples from individuals with diabetes or peripheral artery disease are unsuitable, as these conditions can affect the results.

See our nail testing FAQS to learn more. If you’d like to get a quote, contact our team phone: 1300 56 86 96 or email: hairtesting@toxlogic.com.au