Scientifically developed to improve fast valve action. We don't understand the science - we just know that it works.
Blue Juice Valve Oil is a light, fast, refined petroleum product that's especially effective on close-tolerance musical instrument valves. What distinguishes Blue Juice valve oil—aside from its distinctive blue coloring—is that it delivers an anti-corrosion agent for extra protection. Not only are your valves free from friction, Blue Juice protects against any mold or bacteria that may be present. 2 oz bottle.