has been innovating hormone testing since its founding in 1998. ZRT first
developed the methodology that made saliva hormone testing commercially viable,
and also developed the science for measuring hormones in both dried blood spot
and dried urine. We are one of the few laboratories capable of testing across
three methodologies, which means ZRT tests in the most appropriate medium,
not just the most accurate.
It's important to partner with a laboratory that has both the experience and
technology to deliver the most accurate results. In 15 years ZRT has tested
over 2 million people, and currently performs testing for over 4,000 healthcare
providers in 26 countries and all 50 states. ZRT is also engaged in ongoing
collaborative clinical research with investigators around the world, including
the CDC, NIH and prominent universities.