Eurosonic concentrate is an advanced technology, bio-friendly ultrasonic cleaning solution that contains thousands of enzymes which will remove body oils, debris, rouges, and grime accumulations from metals, stones, and other materials. You’ve seen biodegradable cleaners before which lacks the cleaning power of ammonia. This contains no phenols, ammonia, sulphur, or nitrites and is non-toxic, biodegradable, and requires no hazardous shipping. MSDS approved. Mixes at a 30 to 1 ratio. 1/2 Pint.