Holmium solution is utilized in neutron absorption applications, particularly in nuclear reactors due to its high thermal neutron capture cross-section. It is employed in control rods and shielding materials to regulate nuclear reactions. Additionally, it is used in medical applications such as neutron capture therapy for cancer treatment and holmium-doped lasers (e.g., Ho:YAG) for procedures like lithotripsy in urology and treatment of tumors or osteoporosis. It serves as a dopant in solid-state devices and in research for magnetic and spectroscopic studies. In laboratories, it acts as a calibration standard for analytical instruments such as ICP-MS and AAS. Furthermore, it is applied in the electronics industry for producing infrared lasers used in optical communication and medical devices, and in glass and ceramics to impart special properties like selective light absorption or coloring.