ZRT Laboratory's stated mission is to
educate health care professionals and the public about the
importance of hormone balance to optimal mental and physical
health. They offer a variety of educational resources and The
Hormone Hotline, a 24-hour taped audio-library with a wide
range of topics on hormone balance and testing.
ZRT Laboratory, is a CLIA certified hormone-testing facility owned and operated
by Dr. David Zava, PhD., the biochemist and cancer researcher who developed
cutting-edge technology for saliva and blood spot sample processing and analysis.
This is the only large-volume clinical laboratory to remove contaminants from
saliva samples that may otherwise alter accuracy of test results. Using
advanced methods of testing and documentation, ZRT provides a comprehensive
Hormone Evaluation that can identify specific hormone imbalances that may be
causing symptoms associated with chronic disorders, disease and rapid aging.
ZRT is the only lab that documents and correlates patient-reported symptoms
with tested hormone levels. Follow-up results provide comparative reporting
to enable monitoring of symptoms over time and/or with appropriate therapy.
Complete directions for home sample collection of individual hormones and panels
come with the test kits, which are mailed to you by the lab, unless your practitioner
has them available. ZRT Lab uses a finger-prick blood spot test rather than
saliva for heightened accuracy of thyroid evaluations. (ZRT has chosen not
to measure thyroid hormones in saliva due to its potential for erroneous results
caused by small amounts of contamination.) Home collection of thyroid hormones
in blood spot is currently available only through ZRT. Both blood and saliva samples can be
conveniently collected at home on the same day and sent to ZRT in the prepaid
Canary Club members can now order ZRT kits at a discount