Compressed gas leak detection fluids are gas leak detection fluid products for use on pressurized or compressed gas lines, fittings, valves, tanks or connections, including natural gas, air, propane, butane, oxygen, helium, hydrogen and refrigerant gases. These formulations are extremely sensitive water-thin liquids that can be brushed or sprayed onto a potential leak area. Large gas leaks produce bubbles, while small gas leaks cause foaming-leaks that likely cannot be detected with soap. These fluids are suitable for various uses including gas utilities, plumbers, refrigeration systems and pipelines.