Saliva Testing Validity

ZRT is one of the first labs to measure hormones in saliva, and helped establish the method that made saliva hormone testing commercially viable for health care providers and patients around the globe.
In this video, Dr. David Zava explains why he developed saliva testing, the benefits of using saliva over other collection methods, and what differentiates ZRT from other testing labs.
Visit our website to learn more about saliva testing with ZRT: www.zrtlab.com/sample-types/s...

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Your talking just put me to sleep 💤