"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.