ZRT Laboratory

ZRT Laboratory is a CLIA-certified diagnostic laboratory founded in 1998 that specializes in hormone and wellness testing. It is known for saliva testing, dried blood spot testing and dried urine testing, and it runs tests for hormones, neurotransmitters, heavy metals and vitamin D. Its test menu covers topics such as thyroid imbalance, menopause, andropause, sleep disturbances and weight management.

The lab works with health care providers and patients rather than walk-in customers. Samples are collected at home and shipped in, with turnaround of about 3 to 5 business days. Reports are physician-reviewed and available through secure online access, and clinical consultants are available to providers without an appointment. The lab is located in Beaverton, Oregon.