Story at-a-glance Dimethyl sulfoxide (DMSO) is a potent compound known for treating a wide range of "incurable" musculoskeletal, neurological, infectious, and autoimmune conditions due to its unique properties DMSO properties also transform cancer care as it causes cells to stop being cancerous, significantly increases the potency of many cancer treatments (hence improving their safety and efficacy,) and protects normal tissue from their toxicity Many natural treatments are also dramatically more effective once mixed with DMSO. Hematoxylin, a common pathology dye, when mixed with DMSO is an incredibly potent cancer therapy which has no toxicity to normal tissue Despite promising results and minimal side effects, D-hematoxylin faced significant regulatory barriers, with the FDA and medical establishment effectively marginalizing this potentially breakthrough cancer treatment This article will review the history of this therapy, which cancers it works best against (e.g., leukemias), and the molecular mechanisms that underlie its remarkable effects