Aquasonic Ultrasound Gel uses a formula that makes it hypoallergenic, and non-sensitizing. Acoustically correct, viscous gel for broad range of frequencies used in medical ultrasound applications. It will not stain clothes, damage transducers or irritate skin. Recommended for all procedures where a viscous gel is required. - For diagnostic and therapeutic medical ultrasound procedures. Acoustically correct for the broad range of frequencies used. Hypoallergenic, nonirritating. Water soluble. No formaldehyde. No fragrance or color. 0.25-liter dispenser.