Ultrasound Gel? This conductive gel ensures a smooth connection between your skin and the ultrasound transducer, so the soundwaves can travel between the probe and your organs. Safe, non irritating, Slippery Stuff Personal Lubricant Gel SME, Inc. USA Ultrasound Gel 5 Litre Health and Medical Ultrasound Gel for Wholesale OEM Aquasonic CLEAR Ultrasound Gel by Parker Labs: Water soluble, non irritating transmission gel.