Aquasonic™ 100 is recommended for all diagnostic and therapeutic medical ultrasound. Acoustically correct for the broad range of frequencies used in medical ultrasound. Completely Aqueous, so will not stain clothing or damage transducers. Unique 'can't be copied' formula is bacteriostatic, non-sensitizing and non-irritating. No formaldehyde Used and recommended by leading manufacturers of medical ultrasound equipment worldwide. Aquasonic™ 100 Ultrasound Transmission Gel Aquasonic™ 100 is recommended for all diagnostic and therapeutic medical ultrasound. Acoustically correct for the broad range of frequencies used in medical ultrasound Completely Aqueous Will not stain clothing or damage transducers Unique 'can't be copied' formula is bacteriostatic, non-sensitizing and non-irritating No formaldehyde Used and recommended by leading manufacturers of medical ultrasound equipment worldwide