Aquasonic 100 is a high-viscosity coupling gel that consistently provides efficient transmission of ultrasound waves. It is non-sensitizing, hypoallergenic and non-irritating. Aquasonic Clear offers the same formula and performance as Aquasonic 100, without the perfume or color. Scan is recommended for scanning procedures where a less viscous gel is desired. A unique dual-viscosity formula allows Scan to be applied as a gel and scan as a fluid. Aquasonic 100 also is available in 20 gram sterile gel packets.Visit the manufacturer website for Safety Data Sheets.