AQUASONIC 100 is the most widely used gel for diagnostic and therapeutic medical ultrasound.Recommended for all procedures where a viscous gel is required.Acoustically correct for the broad range of frequencies usedCompletely aqueous, will not stain clothing or damage transducersUnique "can't be copied" formula is hypoallergenic, bacteriostatic, non-sensitizing and non-irritatingNo formaldehydeNot a spermicideUsed and recommended by leading manufacturers of medical ultrasound equipment worldwide