Aquasonic Clear Ultrasound Transmission Gel is based on the same formula as the Aquasonic 100 Ultrasound Transmission Gel but without fragrance or color; thus, it too is recommended for all procedures where a viscous gel is required because it is acoustically correct for the broad range of frequencies used. It is completely aqueous, so it will not stain clothing or damage transducers, and it's unique, "can't be copied" formula is hypoallergenic, bacteriostatic, non-sensitizing, and non-irritating.