A luxury hydrating ultrasound gel perfect for your skin, all while providing accurate ultrasound results. Designed to work perfectly with our hi! Baby Sounder fetal doppler, Dopple Gelixir ultrasound gel is recommended for use with any home care ultrasound device. Containing natural ingredients which moisturize and support skin health. Dopple Gelixir comes in convenient sachets to keep the gel fresh and convenient to travel with.