Parker Labs Scan Ultrasound Gel is a less viscous formula that can be applied like a gel, but scans with the same properties of an ultrasound fluid. The Scan Gel is acoustically suited for any of the ultrasound frequencies found in hospitals or medical centers. The Ultrasound Transmission Gel is available in 8 oz and gallon containers in boxes, cases, or kits. Parker Scan Gel is made from an aqueous formula so that it will not stain clothing or damage ultrasound equipment. For patient safety, the Ultrasound Gel conatins no formaldehyde and is hypoallergenic and bacteriostatic. Scan Ultrasound Gel is proudly made in the USA.