We Care About
Your Health

Every year, modern society manufactures 10 trillion lbs of 84,000 chemicals that human bodies have never seen before. XCellAssay’s mission is to help you identify when you are exposed to chemicals that affect your health, and to provide you with personalized guidance to remove them from your surroundings.


Our People


Fred Schaufele, PhD

CEO and Director of Scientific Operations


Irina Krylova, PhD

Director of Environmental Studies


HaiGuang Zhang, PhD

Director of Technology


Mei Ling

Director of Consumer IT

Press Release

  • September 2022

    XCellAssay announces renewal of its agreement for the right to negotiate an exclusive license with the UCSF Office of Innovation Ventures for the technology covered in US Patent #10,324,099 (Inventor, Dr. Fred Schaufele, co-Founder, XCellAssay). A prior freedom to operate analysis conducted with the Startup Legal Garage program of the University of California Hastings College of the Law indicated that no patents or patent applications were found at the time of the report that “appear to have issued claims or claims that are likely to issue that should be infringed by the XCA’s Product”.

  • March 2022

    XCellAssay Co-Founder and CEO Fred Schaufele discusses our technology with the long-running Anti-Doping PodCast. The conversation focuses on lowering the high rates of abuse of anabolic steroids by amateur athletes, particularly youths, as performance enhancing drugs (PEDs). https://cleancompetition.org/2022/03/01/73-innovative-approaches-for-detecting-anabolic-androgenic-steroid-abuse-fred-schaufele-phd/

  • February 2020

    XCellAssay announces the continuation of funding by the Partnership for Clean Competition (PCC) for the development of our technology for identifying persons exposed to known or unknown androgens or anabolic androgenic steroids. The PCC, which was founded by the U.S. Olympic & Paralympic Committee, the US Anti-Doping Agency, the National Football League and Major League Baseball, has awarded three research studies by Dr. Schaufele to develop the measurement capability as part of the PCC’s mission “to help generate the world’s most influential, effective and coveted methods and resources for detecting and deterring the use of performance enhancing substances by all athletes in all sports at all levels”.

  • May 2020

    Abstracts of two XCellAssay studies, originally scheduled for presentation at the 2020 meeting of The Endocrine Society (cancelled due to the COVID-19 response), now are available at the Journal of the Endocrine Society:
    https://academic.oup.com/jes/article/4/Supplement_1/SAT-748/5833501 and https://academic.oup.com/jes/article/4/Supplement_1/SUN-LB138/5832320

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