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Simple & efficient lab testing for health professionals.

Lab guide: Precision Analytical

Learn about Precision Analytical, providers of the DUTCH test

Regenerus Labs is a leading distributor of Precision Analytical tests to UK, EU and UAE healthcare practitioners.

Precision Analytical

Precision Analytical is a world leader in advanced functional hormone testing. They are based in Oregon, USA

Precision Analytical are at the cutting edge of hormone testing. Their flagship product, DUTCH Complete, is one of our best sellers.

They provide extensive hormone testing with:

  • Easy collection
  • Comprehensive reporting and in-depth interpretation guide for practitioners
  • Thorough research

    Precision Analytical's Qualifications and Licenses

    Precision Analytical is licensed by Clinical Laboratory Improvement Amendments (CLIA) and participates in College of American Pathologists (CAP) quality assurance and proficiency programs.

    Precision Analytical's Founder

    Mark Newman founded Precision Analytical in 2012. Mark is an internationally recognised hormone testing expert. Mark spent 25 years of his career developing and leading urine and salivary testing labs (including at the respected international lab, ZRT for over six years), gaining a thorough insight into blood, urine, and saliva hormone testing. His unique experience led to the creation of the DUTCH test, widely regarded as one of the most comprehensive hormone tests available.

    Mark has co-authored many peer-reviewed studies on the effectiveness of dried urine testing to measure hormones.

    Clinical Research 

    Precision Analytical has consistently been involved in clinical research and produced multiple peer-reviewed studies proving the effectiveness of dried urine testing as an alternative to serum (blood) or saliva for monitoring various hormone therapy applications. Below are some examples:

    In 2021, Precision Analytical presented peer-reviewed research on dried urine testing to the North American Menopause Society. This validated that dried urine testing is an effective alternative to serum or saliva for monitoring hormone therapy applications.

    A 2020 journal featured DUTCH in a study to determine the utility of dried urine sampling in obtaining measures of cortisol and cortisol metabolites. Additional aims were to evaluate if a 4-spot urine collection represents a 24-hour urine collection and if expected diurnal cortisol patterns can be observed in samples from both urine and saliva.

    In 2019, in collaboration with the University of Southern California Reproductive Endocrine Clinical Laboratory, Precision Analytic published a peer-review paper BMC Chemistry that proved that dried urine samples on filter paper provided results that correlated with serum results.

    Accuracy, reliability and consistency

    Precision Analytical use liquid chromatography with tandem mass spectrometry (LC-MS/MS) and gas chromatography-mass spectrometry (GC-MS/MS) to identify different analytes within a test sample.

    These are widely regarded in the laboratory testing community as highly accurate testing processes. Precision Analytical's research also has proven that these methods show increased accuracy over immunoassays.

    Precision Analytical’s flagship test

    DUTCH Complete: DUTCH Complete provides a comprehensive assessment of 35 sex and adrenal hormones and metabolites, including oestrogen, progesterone, testosterone, DHEA, the diurnal pattern of free cortisol and free cortisone, and the total cortisol metabolites. Also included are the oxidative stress marker 8-OHdG, melatonin, and nine other organic acids.

    Buy DUTCH Complete - As a Practitioner

    DUTCH add-ons and combinations: The DUTCH test has a host of add-on panels and combination panels.

    DUTCH Plus adds salivary measurements of free cortisol and cortisone so includes the Cortisol Awakening Response (CAR)

    DUTCH Cycle Mapping charts progesterone and estrogen throughout the menstrual cycle and can be bought as a standalone test or combined with DUTCH Complete DUTCH Cycle Mapping with Complete or Plus DUTCH Cycle Mapping+Plus for the full sex and adrenal hormone metabolism picture.

    Explore DUTCH Test Range - As a practitioner