Company History

Xenobiotic Detection Systems, Inc. (XDS) was founded by Drs. George C. Clark and Michael S. Denison in 1995. The original laboratory was located in Durham, North Carolina where it remained for over 20 years. In 2018 the laboratory was purchased by a Japanese environmental service company, Hiyoshi.

What We’re Doing Now

Xenobiotic Detection Systems International, Inc (XDSI) is one of the world’s leading laboratories offering dioxin screening by cell-based bioassay and we have more than 20 years of experience in using this methodology. We deliver affordable profitable and sustainable solutions to the companies and institutions in the food and feed, environmental, cosmetic, pharmaceutical and industrial sectors.

XDSI has differentiated itself from other laboratories by using unique cell bioassay, CALUX®, to perform rapid, accurate and cost effective services.

cell bioassay