The XYTOS non-invasive Cancer treatment works because the photosensitizers (also referred to as Cellular Medicine or Agents) concentrates in tumor cells. The agent concentrates in tumor cells because the tumor cells have a lactic acid metabolism and a negative charge. Photosensitizers precipitate in acid environments and are positively charged

The following illustrations show why the treatment works.

Normal Cell	Malignant Cell

Photosensitizers precipitate in acid environments
and are positively charged