Established in 1987, Diagnos-Techs, Inc.™ Clinical & Research Laboratory in Kent, Washington is considered the leading international salivary-based testing and research laboratory. In 1989, Diagnos-Techs was the first laboratory to introduce saliva hormone testing into routine clinical practice , and in 1995 added saliva- and stool-based gastrointestinal and food sensitivity testing. A pioneer and leader in saliva-based testing, Diagnos-Techs is committed to assisting health care professionals in restoring health and wellness by offering powerful tools for evaluating stress, hormone-related disease, and other health conditions.