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, 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, KY Jelly Sterile Lubricant Gel MedicalDressings Yoni Bliss Homeopathic Vaginal Moisturizer, Lubricating Gel, Sex Lub Slingshot NW