XCellAssay is pioneering innovative 'BioAssay' technologies that enable the low-cost measurement of hormones in ultra-low volumes of serum or urine that a patient can conveniently collect him/herself. Our technologies enable frequent measurement of the cumulative impact of all agents that affect a hormone's action and that are unique to each individual. That includes other natural hormones with similar actions, drugs and environmental contaminants that affect hormone action, and even serum proteins that bind the hormone. To date, XCellAssay's studies have shown these integrative measurements to improve disease assessment in the two disease areas with others to follow. The improved relevance of the BioAssay measurements coupled with the low cost and increased frequency of monitoring will enable the tailoring of treatment to an individual's unique situation, permitting personalized health care delivery. XCellAssay is currently expanding this capability to multiple hormone systems and disease states. XCellAssay's vision is to provide an integrated assessment of hormonal status for a variety of hormones and other biologic agents of high need within the clinical, drug discovery, and environmental communities.