CLEAR ultrasound gel. Based on the same "can't be copied" formula of the World Standard, Aquasonic® 100 Ultrasound Transmission Gel, without fragrance or color. For diagnostic and therapeutic medical ultrasound procedures. Features No fragrance or color Acoustically correct for the broad range of frequencies used Hypoallergenic, bacteriostatic, non-irritating Water soluble No formaldehyde Not a spermicide